9514 1404 393
Answer:
(a) 160 miles
Explanation:
Let m represent the number of miles Mrs Martin drives. Her rental cost is ...
c = 36 +0.15m
She wants to find m when that is equal to $60.
60 = 36 +0.15m
24 = 0.15m . . . . . . . subtract 36
24/0.15 = m = 160 . . . . divide by the coefficient of m
Mrs. Martin can afford to drive up to 160 miles.