## Algebra: A Combined Approach (4th Edition)

$Volume = \frac{27}{x^{6}z^{3}}$
The formula for the volume of a cube is= $s^{3}$, where s is the length of a side We know that one side, $s=\frac{3x^{-2}}{z}$ So to find volume we must cube said value, to get $(\frac{3x^{-2}}{z})^{3}=\frac{27x^{-6}}{z^{3}}=\frac{27}{x^{6}z^{3}}$