Camden is driving on a long road trip. He currently has 13 gallons of gas in his car. Each hour that he drives, his car uses up 2 gallons of gas. How much gas would be in the tank after driving for 4 hours? How much gas would be left after tt hours?
Gas left after 4 hours:
Gas left after t hours:
Gas left after 4 hours: 13 - (2 * 4) = 13 - 8 = <<13-(2*4)=5>>5 gallons
Gas left after t hours: 13 - (2 * t) = 13 - 2t gallons