Answer:
21+3x
Step-by-step explanation:
multiply the 3 by everything inside the parentheses 
 
        
             
        
        
        
C B A are the orders of the answers
        
                    
             
        
        
        
Answer:
4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x-int = (-40,0)
y-int = (0,15)
Step-by-step explanation:
:D
 
        
             
        
        
        
Answer:
The first one is 8
The second one is 4
And the third one is 4 
Step-by-step explanation: