How many gallons of water can a tank measuring 3 feet by 2 feet by 2 feet hold?

To determine the volume of a tank that measures 3 feet by 2 feet by 2 feet, you start by calculating the volume in cubic feet. The formula for the volume of a rectangular prism (which is the shape of the tank) is length × width × height.

In this case, the volume would be calculated as follows:

• Length = 3 feet

• Width = 2 feet

• Height = 2 feet

So, the volume is:

3 feet × 2 feet × 2 feet = 12 cubic feet.

Next, to convert cubic feet to gallons, you use the conversion factor: 1 cubic foot is approximately equal to 7.48 gallons. Therefore, you multiply the volume in cubic feet by this conversion factor:

12 cubic feet × 7.48 gallons/cubic foot ≈ 89.76 gallons.

When rounding, this number is approximately 90 gallons. Thus, the tank can hold about 90 gallons of water, making that the correct answer.