Step-by-step explanation:

Answer:
C: m∠WXY + m∠YXZ = 180°
Step-by-step explanation:
edu is annoying to do, i got you :)
(x-3)=-3x+25
Because we know that y=x-3 so we put that in place of y in the equation
25/100=30/x x=120 (30+70y)/(120+100y)=50/100 100y=?