If N = 2^0.15 and N^b = 8, b must equal
Choose one.
A) 3 / 80	B) 3 / 5	C) 20	D) 5 / 3	E) 80 / 3

Rationale: "15 / 100 = 3 / 20 n = 2 ^ 3 / 20 n ^ b = 2 ^ 3 ( 2 ^ 3 / 20 ) ^ b = 2 ^ 3 b = 20 answer : c"
Answer: C