Answer:
yes, the last answer is correct....
1/9^5
Explanation:
9^2 / 9^7
We know that a^b / a^c = a^(b-c)
9^2 / 9^7 = 9^(2-7) = 9^-5
But we don't like negatives in the exponents
We know that a^-b = 1/ a^b
9^-5 = 1/9^5
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