What is the volume of a cube with an edge length of 2.5 ft.? Use the formula for the volume of a cube.
The formula for the volume of a cube is V = edge length^3.
Plugging in the given edge length of 2.5 ft, we get:
V = (2.5 ft)^3
V = 15.625 ft^3
Therefore, the volume of the cube with an edge length of 2.5 ft is 15.625 cubic feet.