Answer:
42 units³
Explanation:
You want the volume of a rectangular prism that has a base area of 5 1/4 units² and a height of 8 units.
Volume
The formula for the volume of a prism is ...
V = Bh
where B is the base area and h is the height perpendicular to the base.
Here, we have B = 5 1/4 u² and h = 8 u. The volume is ...
V = (5 1/4 u²)(8 u) = 42 u³
The volume of the prism is 42 cubic units.