A tank contains 80 gallons of water. A hose is pumping water out of the tank at a rate of 5 gallons per minute. The function below gives the volume of water left in the tank after x minutes. f left parenthesis x right parenthesis space equals space 80 space minus space 5 x What do the inputs and outputs of the inverse function f to the power of negative 1 end exponent represent in context? Group of answer choices input: volume of water left in the tank in cubic feet output: time in hours input: time in minutes output: volume of water left in the tank in gallons input: time in hours output: volume of water left in the tank in cubic feet input: volume of water left in the tank in gallons output: time in minutes