A.Find the total volume of water that the trough can hold.Show your work. B. Bill wants to determine the volume of water in the trough when the water is one foot deep. He subsituted 1 for the variable

A.Find the total volume of water that the trough can hold.Show your work. B. Bill wants to determine the volume of water in the trough when the water is one foot deep. He subsituted 1 for the variable h in the formula for the area of a trapezoid instead of 1.2. Which other variable needs to be replaced with a value other than what was used in part A? Explain your answer.