Question 143977
Given {{{12,000(1 + r)^2 = 27,000}}}   find r
{{{(1 + r)^2 = 27,000/12000}}}
{{{(1 + r)^2 = 2.25}}}
{{{(1 + r) = sqrt(2.25)}}}
{{{(1 + r) = 1.5}}}
{{{ r = 0.5}}}

Henry made 50% per year compounded annually.