Problema Solution
A parking garage charges $2.50 for the first hour and $.50 for each additional hour. If a customer gave the parking attendant $20 for parking from 10 am to 3 pm, how much change did the customer receive?
Answer provided by our tutors
from 10am to 3pm there are 5 hours = 1 + 4
for the first hour: $2.50
for the 4 additional hours: 4*0.50 = $2
20 - (2.50 + 2) = 20 - 4.5 = $15.5
the customer received $15.5 change.