Answer:
Step-by-step explanation:
If we multiply 7^2 by 7^8, we get 7^(2 + 8), or 7^10. Thus, a = 10.
If we then divide this 7^10 by 7^4, we get (in the numerator) 7^(10-4), or 7^6. Thus, b = 6.
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5y
10
