Answer: 7n
Step-by-step explanation:
Because....
First Remove the parentheses (a) = a
= 11n - 3n - n 
Then add similar elements: 11n - 3n - n = 7n
= 7n
* Hopefully this helps:) Mark me the brainliest:)!!
~ 234483279c20~
 
        
                    
             
        
        
        
Answer:
D=The graph touches at the x-axis at x=-4 and crosses the x-axis at x=1
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
6x=100+80
6x=180
x=180÷6
x=30 
so we have to work for 30 hours to can buy the CD player and still have $ 80.