ANSWER:
1440 ft^3
STEP-BY-STEP EXPLANATION:
Given:
Height (h) = 108 inches
Width (w) = 8 feet
Length (l) = 20 feet
The volume of a rectangular prism is the product of its height, length, and width.
We know that 1 foot is equal to 12 inches, so the height in feet will be:
[tex]h=108\text{ in}\cdot\frac{1\text{ ft}}{12\text{ in}}=9\text{ ft}[/tex]Now if we can calculate the volume, substituting:
[tex]\begin{gathered} V=l\cdot w\cdot h \\ \\ V=20\cdot8\cdot9 \\ \\ V=1440\text{ ft}^3 \end{gathered}[/tex]The volume of semi-truck trailer is 1440 ft^3