Option B is correct 
Why
3x=21
3(7) =21
21=21
Step-by-step explanation:
 
        
                    
             
        
        
        
7x-32=3
7x=3+32
7x=35
x=35/7
x=5
HOPE IT HELPS U!!
have a great day ahead ! :)
        
             
        
        
        
The upper comment is correct
        
             
        
        
        
Answer:
Step-by-step explanation:
718+200+40=718+240=958
 
        
                    
             
        
        
        
Answer:
7.2
Step-by-step explanation:
the original is 40 and discount is 28% so $40-28%