Reyna runs a textile company that manufactures T-shirts. The profit, p, made by the company is modeled by the function mc025-1.jpg, where s is the number of T-shirts sold. How many T-shirts should be sold to earn a profit of more than $2,000?
plug in 2000 into the equation as an inequality, 2000>s^2 + 9s -142. Now solve for s, 0> s^2 + 9s -2142 which gives you 0>(s+51)(s-42) Then you get 42>s :)