Part 1: how many calories are burned per minute when walking on a treadmill?
a) 0.5 calories
b) 2 calories
c) 60 calories
d) 120 calories
part 2: assuming you walk at a constant rate and burn 120 calories per hour, how many minutes will it take to burn 75 calories?

a) 30 minutes
b) 37.5 minutes
c) 45 minutes
d) 60 minutes