Question

Next period is in 15 mintures

Answer 1

A

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