Four friends plan to rent a car to go on a camping trip. They will drive a total of 450 miles. The cost of gasoline is​ $2.20 per gallon.

1. Write an algebraic expression for the total cost of the gasoline. Let m equal the number of miles​ driven, g equal the number of miles per​ gallon, and p equal the price per gallon of gasoline.

PLEASE I NEED HELP ASAP !!!!