Answer:
B. The lines AB and BC are perpendicular.
Step-by-step explanation:
If all the points are doubled on the x-axis, they are perpendicular.
hope this helps.
 
        
                    
             
        
        
        
Answer: 
Step-by-step explanation:
All radii of a circle are congruent, so by the base angles theorem
Also, angles x and y are inscribed in the same arc, and they are thus congruent, meaning x = 65.
 
        
             
        
        
        
Answer:
Positive 2
Step-by-step explanation:
its like ur subtracting 9+ (-7)
its basically 9-7=2
but not all problems r like this.
Brainlest plz