The gas tank of Ty's truck holds 19.8 gallons. when the tank is empty, Ty fills it up with gas that costs $3.65 per gallon. how much will it cost to fill the tank?
All you have to do is, since it is an empty tank, multiply the gallons and cost per gallon together. Multiplying 19.8 gallons and $3.65 per gallon yields $72.27.