Answer:
The answer for first one is,
a³
Answer for Second one is, 
n.
Answer for 3rd one is. 
-3y
Answer for number four.
x⁹
sorry couldn't answer number 5.
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:

 
        
             
        
        
        
Answer:
A. y(3) + x = total cost
B. Shoe rental is $2.
Step-by-step explanation:
A. 4(3) + 2 = 14
B. If 4(3) = 12, and the total cost is $14. Then the shoes cost $2. 
4(3) = 12 + 2 = 14
 
        
             
        
        
        
...............the answer is D