B.) 64 cm^3
Explanation
the volume of a cube is given by:
[tex]v=(side)^3[/tex]hence, to figure out this, replace the length given and calculate.
a)round 3.92 to 4
now,replace
[tex]\begin{gathered} v=(side)^3 \\ v=(4)^3 \\ v=64cm^3 \end{gathered}[/tex]therefore, the answer is
[tex]B)64cm^3[/tex]I hope this helps you