Answer:
2
Step-by-step explanation:
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It will change because you will move it back, so instead of being in the thousands place, (being 7,000) it will be in the tens place. (being 70)
Both of these are linear functions:
Distance A is d=2.5h and is proportional to time because the distance is just 2.5 times however many hours you have traveled.
Distance B is d= 2(h-1) + 4. This is not proportional to time but it is a linear function.
6hrs = 360 minutes
360/7.5 = 48 bottles required
500g = 0.5kg
48x0.5 = 24 kg
24x 5 = 120p