Answer:
The volume of a rectangular solid is given by the formula:
V = l x w x h
where l, w, and h are the length, width, and height of the solid, respectively.
In this case, we are given the dimensions of the solid as:
l = 5 ft
w = 2 ft
h = 5 ft
Substituting these values into the formula, we get:
V = (5 ft) x (2 ft) x (5 ft) = 50 cubic feet
Therefore, the volume of the rectangular solid is 50 cubic feet.