Answer:
N = 16
Step-by-step explanation:
The only relevant given piece of information is ...
log2(2N) = 5
2N = 2^5 = 32 . . . . . take antilogs
N = 16 . . . . . . . . . divide by 2
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Additional comment
From log8(N) = r/2, you have log8(N^2) = r, or ...
r = log((2^4)^2)/log(2^3) = 8/3
and ...
s = 4 +r = 20/3
