Which equation can replace 3x + 5y = 59 in the original system and still produce the same solution? 2x – y = –4
10x – 5y = –20
7x = 39
13x = 39

Acertain company's main source of income is a mobile app. the company's annual profit (in millions of dollars) as a function of the app's price (in dollars) is modeled by p(x)=-2(x-3)(x-11)p(x)=−2(x−3)(x−11) which app prices will result in \$0$0 annual profit? enter the lower price first.