Question 1077613
<pre>
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{{{cross(y=8x+50)}}}
{{{y=8(x-30)+50}}}, {{{x>30}}}

{{{y=50}}}, {{{0<x<=30}}}
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</pre>



{{{x=82}}};

{{{y=8*(82-30)+50}}}

{{{y=8(52)+50}}}

{{{y=416+50}}}

{{{y=466}}}


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