ANSWER:
(a) 0.23
(b) 8.33
STEP-BY-STEP EXPLANATION:
(a)
In this case we must divide the amount of hours (3) by the price ($13), in order to find the value of hours per dollar, like this:
[tex]\frac{3}{13}=0.23\text{ hours per dollar }[/tex](b)
In this case we must divide the time (25 minutes) by the distance traveled (3 miles), in order to find the value of minutes per miles:
[tex]\frac{25}{3}=8.33\text{ minutes per mile}[/tex]