if n = 2 ^ 0.20 and n ^ b = 16, b must equal Options
A) 3 / 80  B) 3 / 5  C) 20  D) 5 / 3  E) 80 / 3
<gadget id="calculator">log(16)</gadget>
<output>log(16) = around 2.772589</output>

<gadget id="calculator">2 ** 0.2</gadget>
<output>1.148698</output>

<gadget id="calculator">log(1.148698)</gadget>
<output>0.138629</output>

<gadget id="calculator">log(16) / 0.138629</gadget>
<output>7.21349789726536*log(16) = around 20.000063</output>

<result>C</result>
if n = 2 ^ 0.20 and n ^ b = 16, b must equal
divide(log(16), log(power(2, 0.20)))
"20 / 100 = 1 / 5 n = 2 ^ 1 / 5 n ^ b = 2 ^ 4 ( 2 ^ 1 / 5 ) ^ b = 2 ^ 4 b = 20 answer : c"