Identify the range when the domain is f (9). X
-5
- 1
2
4
9
f(x) -6
0
-2
5
8
I only 10 mins left please help!!!

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.