45x^4 + 72x^3 is factored form

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Can someone me with this problem . show your work .

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x