Question 1025989
Let {{{ P }}} = profit for day
Let {{{ n }}} = number of tacos sold/day
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{{{ P = 3.25n - 210 }}}
Profit needs to be positive, so
{{{ 3.25n > 210 }}}
{{{ n > 210/3.25 }}}
{{{ n > 64.615 }}}
They can only sell whole tacos, so
they must sell at least 65 tacos to make a profit
That profit is:
{{{ P = 3.25n - 210 }}}
{{{ P = 3.25*65 - 210 }}}
{{{ P = 211.25 - 210 }}}
{{{ P = 1.25 }}}
$1.25 profit