Answer:
RT = 18
Step-by-step explanation:
RY = TY
2z - 1 = 4z - 11
-2z = -10
z = 5
RT = RY + TY
RT = 2z - 1 + 4z - 11
RT = 6z - 12
RT = 6(5) - 12
RT = 30 - 12
