Question 698251
Let their costs = {{{ C }}}
Let their profit = {{{ P }}}
Let their income from ticket sales = {{{ I }}}
The 1st sentence says 
{{{ C = 342.82 + 82.71 }}}
{{{ C = 425.53 }}}
The 2nd sentence says 
{{{ I = 580 }}}
The 3rd sentence asks for the profit, {{{ P }}}
{{{ P = I - C }}}
{{{ P = 580 - 425.53 }}}
{{{ P = 154.47 }}}