Answer:
43.5
Step-by-step explanation:
Answer: 157.08
r= 5
area= 2π
2*π*= 157.08
(4^7 / 5^2)^3
= 4^(7*3) / 5^(2*3)
= 4^21 / 5^6
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9^2 / 9^7
= 9^(2-7)
= 9^-5
= 1 / 9^5
6^-3 / 6^5
= 6^(-3 - 5)
= 6^-8
= 1 / 6^8