Answer:
The correct answer is 27 cubic feet.
Step-by-step explanation:
Mike wants to purchase a cubical wall unit.
But before buying the unit, Mike wants to find the volume of this wall unit.
Dimension of the wall unit is 3 feet.
Volume of a cube is given by [tex]a^{3}[/tex] where a is the length of the side.
Therefore volume of the cubical wall unit is [tex]3^{3}[/tex] = 27 cubic feet.
