Answer:
A. [tex]\huge \frac{7^{15}}{3^{30}}[/tex]
Step-by-step explanation:
[tex]\huge \bigg(\frac{3^{-6}}{7^{-3}}\bigg) ^5[/tex]
[tex] \huge =\bigg(\frac{7^{3}}{3^{6}}\bigg) ^5[/tex]
[tex] \huge =\bigg(\frac{7^{3\times 5}}{3^{6\times 5}}\bigg) [/tex]
[tex] \huge =\frac{7^{15}}{3^{30}} [/tex]
