Answer:
This answer is a function because there are no repeating x values. It is okay if there are repeating y values, the x values are the problem. This one has no repeats though so it is a function!
Step-by-step explanation:
 
        
                    
             
        
        
        
C = what ever the algebraic pharse is standing for c can equal to what ever number there is
        
                    
             
        
        
        
165/1,000 is .165 in fraction form. 
 
        
             
        
        
        
Taxes is the correct answer hope this helps :)