Answer:
3/2(x+y)
Step-by-step explanation:
The cost of 2 DVD is x+y
Divide by 2 to get the cost of one DVD
(x+y) /2
Multiply by 3 to get the cost of 3
3/2(x+y)
 
        
                    
             
        
        
        
Answer:
fiction is 90
non fiction is 70
420 books 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Sophia is 17 years old. Sophia's brother is 11 years old.
Step-by-step explanation:
 
        
             
        
        
        
Answer: the answer is 0.435
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
y=x-5
Step-by-step explanation:
y=mx+b
if lines are parallel then that means the slope (m) is the same so the only thing left to change is the y-intercept (b). this can be anything but probably shouldn't be what the original was