Answer
9
Work Step by Step
We follow the instructions and plug -3 in for r and 5 in for s. This leaves us with the expression:
$\frac{5^{0}}{(-3)^{-2}}$
Recall the equation: $a^{-n}= \frac{1}{a^{n}}$. Thus, we put $-3^{-2}$ in the numerator of the fraction with a positive exponent. Thus, we find that the expression becomes:
$5^{0} \times (-3)^{2}=9$
(Recall, anything raised to the zeroth power is 1).
