Hi there!  
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I believe your answer is:  
(-3, -1) and (1, 3) 
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Here’s why:  
- I have graphed the two equations given on a graphing program.
- When graphed, they pass at points (-3, -1) and (1,3). Therefore, they are the solutions to the system. 
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See the graph attached.
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Hope this helps you. I apologize if it’s incorrect.  
 
        
                    
             
        
        
        
Answer: 36 customers
Step-by-step explanation:
 I'm pretty sure because you have to multiply 40 x 6 which is 240 and 6 x 6 which is 36 to get your answer.
 
        
             
        
        
        
Probably D, I’m not sure if this helped but if it did, I’m glad that I helped
        
             
        
        
        
Multiply by two
2/5 x 2/1 = 4/5