Final answer:
The approximate volume of the tank is 1940 cubic feet.
Step-by-step explanation:
The volume of a rectangular tank can be calculated by multiplying its length, width, and height. In this case, the tank is 35.5 feet long, 7.25 feet wide, and 7.5 feet tall.
Therefore, the volume of the tank is:
35.5 feet x 7.25 feet x 7.5 feet = 1935.9375 cubic feet
However, the volume is usually rounded to three significant figures. So, the approximate volume of the tank is 1940 cubic feet.