Answer:
z = 115 degrees
x = 15
y = 25
Step-by-step explanation:
The angles do not change so z = 115 degrees as it is congruent to angle R
30/25 = 18/x
18 x 25 = 30x
450 = 30x
30/y = 18/15
30 x 15 = 18y
450 = 18y
