Caleb wants to rent a kayak. kayak rentals cost $14.50 for a half hour. if caleb rents a kayak for one hour and forty-five minutes, how much will it cost him?

It would cost $14.50 for half an hour so:

14.50 x 3 = 43.5 since 3 would represent 1 and a half hour.

The 15 minutes would be half of 14.50 which would be 7.25

So 43.5 + 7.25 = $50.75