Answer:
A
Step-by-step explanation:
m∠WXY=m∠WXZ+m∠zxy
160=5x+8+7x-4
12x+4=160
12x=160-4=156
x=13
m∠WXY=5x+8=5×13+8=65+8=73
m∠ZXY=7×13-4=91-4=87
