The volume \( V \) of a right rectangular prism is given by the formula:
\[ V = \text{Base Area} \times \text{Height} \]
In this case, we know that the volume \( V \) is 50 cubic feet and the height \( h \) is 4 feet. We need to find the base area \( A \).
Rearranging the formula to solve for the base area \( A \):
\[ A = \frac{V}{h} \]
Now, substituting the values for \( V \) and \( h \):
\[ A = \frac{50 \text{ ft}^3}{4 \text{ ft}} = 12.5 \text{ ft}^2 \]
Thus, the area of the base is 12.5 ft².
The correct responses are: 12.5 ft² or 12.5 feet squared.