Cheesestick

Mathematics

22 July, 06:20

Profit is the difference between revenue and cost. The revenue, in dollars, of a company that manufactures cell phones can be modeled by the polynomial 2x2 + 55x + 10. The cost, in dollars, of producing the cell phones can be modeled by 2x2 - 15x - 40. The variable x represents the number of cell phones sold.

What expression represents the profit, and what is the profit if 240 cell phones are sold?

40x - 30; $2,400

40x - 30; $9,570

70x + 50; $16, 850

70x + 50; $28,800