Question

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Answer 1

The answer is C , 10/m5

Answer 2

(5m ^ -2) * (2m ^ -3)
Remember that by power properties we have:
(5 (1 / m ^ 2)) * (2 (1 / m ^ 3))
Rewriting the equation:
((5) * (2)) * (1 / m ^ 2) * (1 / m ^ 3)
Then, again for power properties:
10 / m ^ 5
answer:
10 / m ^ 5
option 3