Question 1122531
n games sold at price {{{30-0.2n}}} dollars per game;
Revenue {{{n(30-0.2n)}}}



Cost:   12 dollars per game, n games bought;
{{{12n}}}



Profit Wanted:  400 dollars;
{{{n(30-0.2n)-12n>=400}}}
Simplify and solve this for n.