Answer:
50 degrees
Explanation:
Ah ok so we know that x= 80 degrees.
y+z= x.
So all you have to do is input the values.
80-30=50
Hence the answer is C) 50
C) 50
x+90+90+y+z=360
270+y+z=360
y+z=90
Therefore, C) 50
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