Highlight each piece of given information that is used in the proof, and each line in the
proof where that piece of information is used.
(image below)

1. C. Scientific proof

The use of DNA analysis by Archaeologists to provide insight on the influence of Vikings would make Scientific proof a good heading here.  

2. D. Scarce Information

This paragraph speaks on the lack of concrete information about the Vikings which points to scarce information about them.

3. F. Negative characteristics

Paragraph talks about the tendency to portray Vikings in a negative light due to their attacks on religious establishments.

4. E. A different way to inform

Vikings may not have used the roman alphabet which made history easier to record but they used Runes which means that they had a different way to inform.

5. A. Informative Monuments

Memorial stones were carved on by the Vikings to show the names of certain people and sometimes the events that these people participated in thereby making these monuments informative.

1. C. Scientific proof

The use of DNA analysis by Archaeologists to provide insight on the influence of Vikings would make Scientific proof a good heading here.  

2. D. Scarce Information

This paragraph speaks on the lack of concrete information about the Vikings which points to scarce information about them.

3. F. Negative characteristics

Paragraph talks about the tendency to portray Vikings in a negative light due to their attacks on religious establishments.

4. E. A different way to inform

Vikings may not have used the roman alphabet which made history easier to record but they used Runes which means that they had a different way to inform.

5. A. Informative Monuments

Memorial stones were carved on by the Vikings to show the names of certain people and sometimes the events that these people participated in thereby making these monuments informative.

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

The answer is in the image 

The total nom of  code that can be used is equal to 5+3 = 8

For every 8 cars there are 7 trucks

Therefore,

Cars:Truck=8:7

Answer is B)8:7

The answer is in the image 

Here,

tip=18%of $32

tip=(18/100)*32

=0.18*32

=$5.76

Total payment=32+5.76=$37.76

Speed=Distance/time

Here,

distance=15m

time=1sec

speed=15/1=15m/sec

Distance=Speed*time

time=15min=15*60sec=900sec

Distance travelled in 15 min=15*900=13,500m

=13500/1000 km=13.5Km

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.