Question

Which of the following best defines the quantities that should be measured to find Andy driving speed?

Answer 1

I think its B because you measure distance on the road in miles, you don't measure how far you went by hours. And the quantity of time does not measure in miles, but hours.

Answer 2

I believe the answer is B.) The quantity of distance measures in miles depends on the quantity of time measures in hours. This is because when trying to find speed a person must know the distance and the time that the object/person traveled that distance which the time is mostly measured in hours. 
I hope I helped!