1 pt
2.

What is the value of ${x}^{4}×{x}^{5}$?

1 pt
6.

What is the value of $\frac{4{x}^{-3}}{7}$?

1pt
13.

If $\frac{{x}^{17}}{{x}^{15}}=64$, then what is the value of $\frac{{x}^{12}}{{x}^{9}}$?