The volume of a rectangular prism can be calculated by using this formula:
[tex]V=lwh[/tex]Where "l" is the length, "w" is the width and "h" is the height.
In this case, you know that the dimensions of the classroom are:
[tex]\begin{gathered} l=32ft \\ w=26ft \\ h=9ft \end{gathered}[/tex]Then, you can substitute values into the formula and then evaluate, in order to find the volume of the room:
[tex]\begin{gathered} V=(32ft)(26ft)(9ft) \\ V=7,488ft^3 \end{gathered}[/tex]The answer is:
[tex]V=7,488ft^3[/tex]