Which of the following is a solution the inequality below y -7 < -12. a : y < -5. b : y > -7 c : y> -12 d: y < -19

Can any one me with the answers to these questions asap?

How many solutions does the nonlinear system of equations graphed bellow have?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.