Maricela bikes at a steady rate from a tube station to a campground that is 30 mi away. After 3 h, she is 15 mi from the campground. After 6 h, she is 8 mi from
the campground. A graph shows her distance

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?