This one is a bit confusing without a diagram anyway. We'll assume the typical labeling where A and B are consecutive angles, so the transverse line AB through the parallels makes A and B supplementary:
A + B = 180 degrees
12x + 46 + 7x + 1 = 180
19x = 180 - 47 = 133
x = 133/19 - 7
 
        
             
        
        
        
I think that it is b sorry if I’m wrong
        
             
        
        
        
Answer:
2
Step-by-step explanation:
8+2x=6x
     -2x  -2x
4x=8
=2
 
        
                    
             
        
        
        
Answer: 180 degrees
Step-by-step explanation:
A rotation of 180 degrees about the origin maps  .
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