Question 756715
Profit is revenue minus cost, or {{{ P = R - C }}}
given:
{{{ C = 460 + 10x }}}
{{{ R = 35x }}}
{{{ R - C = 35x - ( 460 + 10x ) }}}
{{{ R - C = 35x - 10x - 460 }}}
{{{ R - C = 25x - 460 }}}
{{{ P = 25x - 460 }}}
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(b)
{{{ P(42) = 25*42 - 460 }}}
{{{ P(42) = 1050 - 460 }}}
{{{ P(42) = 590 }}}