Respuesta :

Answer:

(a) = 0.22 hours per dollar, (b) = 8.33 minutes per mile

Step-by-step explanation:

(a):  4/18

0.22 hours per dollar

(b):  25/3

8.33 minutes per mile

Answer:  (a) = 0.22 hours per dollar, (b) = 8.33 minutes per mile