HELPPPP THSI IS THE ONEEE HELP HELP

Answer:
Step-by-step explanation:
Volume of a cube =side³
[tex]=(\dfrac{1}{5}b^{3})^{3}\\\\\\=(\dfrac{1}{5})^{3}*b^{3*3}\\\\ = \dfrac{1}{125}b^{9}[/tex]