Answer:
m<z= 50*
m<w= 130*
m<y=130*
We already know that X is 50 so the one directly across from it is the same so it is also 50. What I like to do when I can't figure out the other angles is I subtract 180 from what I know the other angle is. so I subtracted 50 from 180 and I got 130 for W and Y.
Get back to me with info on the second question and I'll answer it.
