Which two functions are inverses of each other? Ofx) = x, g(x) = -x
O f(x) = 2x, 8(x) = -1
Of(x) = 47,8(t) 12
Of(x) = -8x, g(x) = 8x

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?