The surface area of this cube is 54 square yards. What is the volume?

Let the length of one side of the cube be x.

The surface area of the cube is given by 6x^2, so we know that:

6x^2 = 54

Simplifying, we divide both sides by 6:

x^2 = 9

Taking the square root of both sides:

x = 3

Therefore, the length of one side of the cube is 3 yards.

The volume of a cube is given by V = x^3, so:

V = 3^3 = 27

The volume of the cube is 27 cubic yards.