Question 854329
If log2y=15, find the value of log28y, 
the answers I was told are as follows:

y=32768 therefore log2 8y=32768

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{{{log(2,y) = 15}}}
{{{ y = 2^15 = 32768}}}
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{{{8y = 2^3*y = 2^18}}}
{{{log(2,2^18) = 18}}}