Question

A parking garage charges ​$2.88 for the first hour and ​$0.50 for each additional hour or part of an hour. What is the maximum length of time tom can park in the garage if he wishes to pay no more than ​$6.88​?

Answer 1

2.88 + 0.50r ≤ 6.88

0.5r ≤ 4

r ≤ 8

8 + 1 = 9

He has to stay for no more than 9 hours.