8. It is a function, the x’s do not repeat
9. It is not a function, -3 is listed twice
        
             
        
        
        
D. to clearly state why the experiment was performed
        
             
        
        
        
There is a total of $35,000 worth of prizes being given out for 5,000 tickets.  We can find the expected value for each ticket by dividing 35,000/5,000.  This equals $7.00.
        
                    
             
        
        
        
Answer:
$40
Step-by-step explanation:
Find the original price by dividing 28 by 0.7
28/0.7
= 40
So, the original price was $40