What is the value of x in the equation 1 x - y = 30, when y= 15?
4.
08
80
0 200

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.