Explanation:

To find out how much liquid the tank can contain, we need to calculate the volume of the cone.

- The formula for the volume of a cone is:

$$

\text{Volume} = \frac{1}{3} \times \pi \times \text{radius}^2 \times \text{height}

$$

- Plug the values into the formula:

$$

\text{Volume} = \frac{1}{3} \times 3.14 \times 7^2 \times 9

$$

- Calculate the result:

- \(7^2 = 49\)

- \(3.14 \times 49 = 153.86\)

- \(153.86 \times 9 = 1384.74\)

- \(\frac{1}{3} \times 1384.74 = 461.58\)

- Correct Answer:

Option 4: 461.58 cubic feet