I'M soo not sure on this one. But if I did the math correctly your answer would be C. 64
Hoped I help! 
Also sorry if its wrong. 
        
             
        
        
        
Step-by-step explanation:
Store a must offer 30%
 
        
                    
             
        
        
        
So simple... 3\ll=27\100 which equals 27.0 or 0.27
        
             
        
        
        
(2,3)??? Maybe? I really don’t know