Keisha and her family are moving to a new apartment 12 miles from their old one. You-Do-It Truck Rental rents a small truck for $19.95 per day plus $0.35 per mile. Keisha's family hopes they can complete the move with five loads all on the same day. She estimates that she will drive the truck another 10 miles for pickup and return.
a. Write an expression that represents the cost of a one-day rental with any number of miles.
b. How much will Keisha pay if she does complete the move with five loads?
c. How much can Keisha save if she completes the move with four loads?