I think not sure but i think the discout is $5.76
        
                    
             
        
        
        
So,
Normally a unit rate will be x per 1y.  Example: 60 miles/1hr.
Therefore, the option with the denominator as 1 would be the unit rate.
The correct option is C.
        
                    
             
        
        
        
The correct answer to this problem would be -3. Based on the points you've provided on the graph, -3 would be the correct common difference. :)
        
                    
             
        
        
        
Answer:
3.75 or 15/4
 Step-by-step explanation: