Final answer:
The depth of the tank is 9 inches, which is 3/4 feet. The volume of the water in the tank is 9 cubic feet.
Step-by-step explanation:
The depth of the tank is given as 9 inches, which is 9/12 = 3/4 feet.
To calculate the volume of the tank, multiply the length, width, and depth:
Volume = 3 feet x 2 feet x 3/4 feet = 9 cubic feet.
Therefore, the volume of the water in the tank is 9 cubic feet.