Question 978536
Let {{{ k }}} = constant
Let {{{ c }}} = cost of a pizza 
Let {{{ r }}} = radius of pizza
{{{ c = k*r^2 }}}
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{{{ 8 = k*6^2 }}}
{{{ k = 8/36 }}}
{{{ k = 2/9 }}}
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{{{ c = (2/9)*14^2 }}}
{{{ c = (2/9)*196 }}}
{{{ c = 392/9 }}}
{{{ c = 43.56 }}}
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A pizza with 14" radius costs $43.56