Answer:
So, where is the question that you are talking about?
 
        
             
        
        
        
Answer:
Five bags of dog food costs $21.25.
Step-by-step explanation:
We can solve using proportions.

 
        
             
        
        
        
Answer:
It is a function
Step-by-step explanation:
The x values are different; if they were to be the same, such as (1,7),(2,8),(1,9) it would be incorrect.
 
        
             
        
        
        
Answer:
FALSEEEEE Teellll me if its right
Step-by-step explanation:
 
        
             
        
        
        
Answer:  Its 3 ^(x-2) + 2
Step-by-step explanation:
Because y increases when x increase base is  3. Try 
x = 2  gives 3^(-1) + 2 = 2,33 and x = 3 gives 3^0 + 2 = 3