Answer:
1152 cubic feet
Step-by-step explanation:
We can find the volume of a rectangular prism by multiplying all of its side lengths. Likewise, we can find the how much air needs to be heated or cooled in a room by multiplying the room's dimensions:
[tex]V = l \cdot w \cdot h[/tex]
[tex]V = (16\text{ ft}) \cdot (8 \text{ ft}) \cdot (9\text{ ft})[/tex]
[tex]V = 1152\text{ ft}^3[/tex]
So, 1152 cubic feet need to be heated or cooled.