Question 1029829
{{{ 12*12 = 144 }}} 12 dozen roses
{{{ .1*144 = 14.4 }}}
15 roses will wilt before they can be sold
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selling price with 55% markup on the roses:
{{{ 1.55*117 = 181.35 }}}
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There are {{{ 144 - 15 = 129 }}} saleable roses
The salable roses will sell at:
{{{ 181.35 / 129 = 1.41 }}} per rose
{{{ 12*1.41 = 16.92 }}} 
$16.92 is the price per dozen to sell the roses for
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Hope I got it, but I would get another opinion, too