C = 180 - A - B
And 
C = 180 - (A+B)
Hope I can help you :) 
Brainliest answer :)) ?
        
             
        
        
        
Answer:
Friday, Feb. 8, at 3:16 p.m.
Step-by-step explanation:Just took it :3
 
        
                    
             
        
        
        
Answer:
47
Step-by-step explanation:
$460 + $90 = $550
4 x $20 = $80
$550 - $80 = $470
$470/10 = 47
they have to wash 47 cars
 
        
             
        
        
        
Answer:
$56
Step-by-step explanation:
100 - (100(0.30)) = 100 - 30 = 70
70 - (70(0.20)) = 70 - 14  = 56