True or false If CA = AT, then A is the midpoint of Segment CT

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.

When solving a logarithm equation, how do you find the missing variable ?

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2