Question

Please i need help!!!!! Medal and Fan!
1) 2^(3-y)= 8
2) 1/27=b^-3
3)1/81= k^-4

Answer 1

hmm is it pretty clear that \(2^3=8\)?

Answer 2

2)b^-3 = 1/b^3
1/27 = b^-3 = 1/b^3
1/27^(1/3) = 1/b^(3*1/3)
27^1/3 = b=

Answer 3

3) 81 can be written as 3^4