If Z is the midpoint of what are x, RZ, and RT?

A. x = 18, RZ = 134, and RT = 268
B. x = 22, RZ = 150, and RT = 300
C. x = 20, RZ = 150, and RT = 300
D. x = 20, RZ = 300, and RT = 150 ITS A STRAIGHT LINE R -----------Z--------T
8x-10 150