Suppose that Martin finished the race 0.47 second after Kim. What was Martin's time in the race? Use an estimate to check that your answer is reasonable.​

I'm pretty sure it's b). i try drawing the functions out and b is the one that stands out or isnt a "line"

A. is the answer in this question

Answer is negative 2

If i think this is what your asking, he should look at the grams or pounds/ounces and compare the to their cost then max can identify which one is proportional and which is not ( i think xd)