The volume of a cube can be calculated using the formula shown below:
[tex]V=s^3[/tex]Where "V" is the volume of the cube and "s" is the length of any edge of the cube.
In this case, you know that "s" is:
[tex]s=3in[/tex]Knowing the value of "s", you just need to substitute it into the formula and then evaluate.
Therefore, the volume of this cube, is the following:
[tex]\begin{gathered} V=(3in)^3 \\ V=27in^3 \end{gathered}[/tex]The answer is:
[tex]V=27in^3[/tex]