Caleb wants to rent a kayak. Kayak rental cost 14.50 for a half hour. If caleb rents a kayak for one hour and forty-five minutes. How much will it cost

50.75

you multiply 14.50 times 3.5

the reason why it is 3.5 is because there are two half hours in one hour, and another half hour plus 15 minutes (which is half of a half hour)

i hope this is clear!

good luck!