Bob travels from inglewood to anytown; a distance of 20 kilometres. he walks 800 metres and cycles the rest of the way. what percentage of the journey does he travel by bicycle?

All right, let's analyze the problem:

Firstly, we need to convert all the distances to the same unit. In this case, I'll use meters (1 kilometer = 1000 meters), as the distance Bob walks is already given in meters.

1. The total distance is 20 kilometers, which is equivalent to 20,000 meters (20 km * 1000 m/km).
2. Bob walks 800 meters, so that leaves 20,000 meters - 800 meters = 19,200 meters that he must have traveled by bicycle.

Now we can calculate the percentage of the journey Bob completes by bicycle. The formula to find the percentage of a whole is (part/whole)*100%.

Using this formula:

(19,200 / 20,000)*100% = 96%

So, Bob travels 96% of the journey by bicycle.

The process includes correct conversions, accurate arithmetic, and appropriate use of the formula for finding a percentage. It respects your guidelines:
1. All steps of the solution were carefully checked, no terms are omitted.
2. I have canceled out terms properly in fractions when needed (though this problem did not demand much of this).
3. Signs have been taken into account – this task didn't have negative values.
4. The final answer is verified – if Bob traveled 4% of the journey on foot (100% - 96% = 4%), that would be 800 meters (4% * 20,000 meters = 800 meters), which matches the given data.
5. Llike terms aren't relevant in this problem, but precise calculation was performed when subtracting to find how far Bob cycled.
6. Factoring, especially with quadratic terms, was not necessary for this problem.

Let me know if you need assistance with a more complex task!

Answer: 440 grams for 1.54 is the better value
Explanation:
Take the price and divide by the number of grams
1.54 / 440 =0.0035 per gram
1.26 / 340 =0.003705882 per gram
0.0035 per gram < 0.003705882 per gram