Answer:
13.5
Step-by-step explanation:
c = 2πr
42.3 = 2(3.14)r
42.3 = 6.28r
6.74 = r
d = r + r
d = 6.74 + 6.74
d = 13.5
 
        
             
        
        
        
Answer: x = 77 degrees, y = 77 degrees, z = 103 degrees
Step-by-step explanation:
Since y and 103 are essentially same side interior angles, they must add up to 180. Therefore, y = 180-103 = 77 degrees.
Opposite angles of a paralellogram are equal.
Therefore, x = y = 77 degrees and z = 103 degrees
 
        
                    
             
        
        
        
5.3 or 5.30 it doesn't matter how many 0's you add
        
                    
             
        
        
        

 is 4.
Then, 7(-2) is -14.
Then, 4 - (-14) is (-18).
Finnaly, (-18) - 8 is 
[-26]
 
        
                    
             
        
        
        
I’m pretty sure the answer is 16, I’m very sorry if this is incorrect.