Answer:
20 1/4
Explanation:
9x^2y^-2
9 * 3^2 * 2^-2
9 * 9 * 0/25
= 20.25 or 20 1/4
20 and 1/4
9(-3)^2 * 2 ^ -2
9 * 9 * 1/4
81/4 or 20 and 1/4
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