Nine increased by the product of a number and 5 is greater than or equal to -18 .

Hello.

First of all, let the number be t.

The product of 5 and t is written like so:

9 increased by means we add 9, so let's add 9 to 5t:

5t+9

Now, this expression is greater than or equal to -18:

Therefore, the final answer is:

I hope it helps.

Have a nice day.

1) Pollution and acid due to industry and factories in urban areas. Africa has many problems, like famine, AIDS/HIV etc, but the pollution and acid due to industry and factories in urban areas are not a major issue right now. Though, as development does occur in some areas, this could become problems in the future.

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2) A decrease in the usability of soil for agriculture. As deforestation progress, it is most likely that this issue would lead to a decrease in the usability of soil for agriculture, just like it is already happening in Amazonia and others regions that have faced similar problems.

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3) Most Egyptian people lived and still live today close to the Nile river and Nile Delta because it is close to land that can grow crops. The majority of the Egypt agricultural production is located near the water of the Nile, the longest river on the Earth, as it permits the cultivation of various forms of crops.

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4) If population growth occurs in an area that depends on farming, a direct result could be that deforestation will occur to clear land for additional farms. This happens because, as there is a grown in population, there is a growing in the demands of products derived from farming, and so more farms are needed in order to supply the demand. Deforestation occurs to make space for new farms.

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5) The best term that could be used to describe the process of putting more trees in this area is reforestation. Reforestation is the opposite of deforestation, and as deforestation is a process in which trees are cut from the forest, reforestation is a process that puts more trees in an area.

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6) People in South Africa would be most affected by the spread of the Kalahari Desert. The Kalahari Desert, situated mainly in Botswana, is spreading into other regions, including South Africa. Desertification is a process that could affect many sectors of the economy in the region.

7) People in Sub-Saharan Africa are least likely to live in a desert. Sub-Saharan Africa is the area of the continent that is situated fully or in part under the Sahara Desert, according to the United Nation. It is an area in which poverty is extremely diffused and that is still facing many issues.

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8) True. The majority of Sub-Saharan African cities are located along major rivers, and the coast, because they needed access to bodies of water for trade. Historically, this was the normality for many cultures, as the access to water guarantee an access to trade and sometimes food, so it should come as no surprise that major city in the area still follows this principle.

---

9) The factor is most likely to have had the greatest impact on human settlement patterns in Sub-Saharan Africa is the proximity to water sources needed for subsistence farming. This is because water is a basic need in order to farming, so the impact would be likely to be more extended in those regions.

---

10) People in the Democratic Republic of Congo would be most affected by rain-forest conditions, as it happens that the Democratic Republic of Congo is situated where there is one of the biggest rainforests still present on the planet, so this is a factor that is a big influence on the people living in the region.

---

11) The relationship between literacy rates and a nation's standard of living is that a higher literacy rate will have a positive effect on a nation's standard of living. This happens because a higher literacy rate means more people with an higher education which mean more capable of creating or bring new jobs, which led to higher nation’s standard of living.

---

12) False.  The Bantu migrations are NOT most closely associated with the Colombian Exchange. The Bantu migration happened between 1000 A.D. to 1800 A.D., while the Colombian Exchange happened during the XV and XVI century, but the two migrations are not related.

1) Pollution and acid due to industry and factories in urban areas. Africa has many problems, like famine, AIDS/HIV etc, but the pollution and acid due to industry and factories in urban areas are not a major issue right now. Though, as development does occur in some areas, this could become problems in the future.

---

2) A decrease in the usability of soil for agriculture. As deforestation progress, it is most likely that this issue would lead to a decrease in the usability of soil for agriculture, just like it is already happening in Amazonia and others regions that have faced similar problems.

---

3) Most Egyptian people lived and still live today close to the Nile river and Nile Delta because it is close to land that can grow crops. The majority of the Egypt agricultural production is located near the water of the Nile, the longest river on the Earth, as it permits the cultivation of various forms of crops.

---

4) If population growth occurs in an area that depends on farming, a direct result could be that deforestation will occur to clear land for additional farms. This happens because, as there is a grown in population, there is a growing in the demands of products derived from farming, and so more farms are needed in order to supply the demand. Deforestation occurs to make space for new farms.

---

5) The best term that could be used to describe the process of putting more trees in this area is reforestation. Reforestation is the opposite of deforestation, and as deforestation is a process in which trees are cut from the forest, reforestation is a process that puts more trees in an area.

---

6) People in South Africa would be most affected by the spread of the Kalahari Desert. The Kalahari Desert, situated mainly in Botswana, is spreading into other regions, including South Africa. Desertification is a process that could affect many sectors of the economy in the region.

7) People in Sub-Saharan Africa are least likely to live in a desert. Sub-Saharan Africa is the area of the continent that is situated fully or in part under the Sahara Desert, according to the United Nation. It is an area in which poverty is extremely diffused and that is still facing many issues.

---

8) True. The majority of Sub-Saharan African cities are located along major rivers, and the coast, because they needed access to bodies of water for trade. Historically, this was the normality for many cultures, as the access to water guarantee an access to trade and sometimes food, so it should come as no surprise that major city in the area still follows this principle.

---

9) The factor is most likely to have had the greatest impact on human settlement patterns in Sub-Saharan Africa is the proximity to water sources needed for subsistence farming. This is because water is a basic need in order to farming, so the impact would be likely to be more extended in those regions.

---

10) People in the Democratic Republic of Congo would be most affected by rain-forest conditions, as it happens that the Democratic Republic of Congo is situated where there is one of the biggest rainforests still present on the planet, so this is a factor that is a big influence on the people living in the region.

---

11) The relationship between literacy rates and a nation's standard of living is that a higher literacy rate will have a positive effect on a nation's standard of living. This happens because a higher literacy rate means more people with an higher education which mean more capable of creating or bring new jobs, which led to higher nation’s standard of living.

---

12) False.  The Bantu migrations are NOT most closely associated with the Colombian Exchange. The Bantu migration happened between 1000 A.D. to 1800 A.D., while the Colombian Exchange happened during the XV and XVI century, but the two migrations are not related.

1970

Increased involvement in the Vietnam War, Great Society programs fully in effect.

Consumers lose purchasing power with inflation forcing them to buy less.

1970

Increased involvement in the Vietnam War, Great Society programs fully in effect.

Consumers lose purchasing power with inflation forcing them to buy less.

Answer for the question:

Indi and Indrani are sisters who own a software development company. Demand has been increasing for their products and services and the sisters are contemplating whether to open up a satellite office in Austin. They estimate it would add $7 million in expenses with their profit increasing by $2.5 million each year for the next 5 years (all other things equal). Indi and Indrani decidea) to open an new office because the expected marginal benefit ($12.5 million over 5 years) is greater than the estimated marginal cost ($7 million). b) to open an Austin office because the marginal cost of the new office is low compared to other similar projects. c) to not open a new office because the marginal costs prove to be too high.

Is given in the attachment.

Explanation:

Answer for the question:

Indi and Indrani are sisters who own a software development company. Demand has been increasing for their products and services and the sisters are contemplating whether to open up a satellite office in Austin. They estimate it would add $7 million in expenses with their profit increasing by $2.5 million each year for the next 5 years (all other things equal). Indi and Indrani decidea) to open an new office because the expected marginal benefit ($12.5 million over 5 years) is greater than the estimated marginal cost ($7 million). b) to open an Austin office because the marginal cost of the new office is low compared to other similar projects. c) to not open a new office because the marginal costs prove to be too high.

Is given in the attachment.

Explanation: