Question

I don't know If I answered this question right? Can you please check it for me and explain what I'm supposed to do? Thank you.

Answer 1

`\left( \cfrac{y^7m^5}{y^9m^3} \right)^7=\left( \cfrac{m^2}{y^2} \right)^7=\cfrac{m^(14)}{y^(14)}`