Question

Rose likes to water ski on her sister's boat. the boat takes 3 gallons of gas each hour to run. gas costs $5 per gallon, how much money will she spend on gas to ski for 4 hours?

Answer 1

Since the boat takes 3 gallons to run for an hour, she would spend $15 each hour (3*5) and for 4 hours you would spend $60 (4*15).