Answer:
Approximately (2, 1)
See image
 
Step-by-step explanation:
Rearrange each equation so it is ready to be graphed on an x-y-axis (see image) look for the point where the two lines cross. This is the solution for the system of equations. 
 
        
             
        
        
        
Answer:
396.8
Step-by-step explanation:
Multiply them to each other. 
 
        
                    
             
        
        
        
Step-by-step explanation:
Hope this is correct 
Have a good day! 
 
        
             
        
        
        
Answer:
21
Step-by-step explanation:
literally says it in the text ight