It is D because us the given equation all you do is plug in the x values given on the chart  
 
        
                    
             
        
        
        
- 4 1/3 = -(4*3+1)/3 =-13/3
-2 3/5 = -(5*2+3)/5 = -13/5
-13/3 divided by -13/5
-copy dot flip
-13/3 *-5/13
5/3
1 2/3
Choice A
 
        
             
        
        
        
2|------|------|------|3/3 or 1 whole
 1/3. 2/3
        
             
        
        
        
9514 1404 393
Answer:
   Every night
Step-by-step explanation:
The problem statement tells you ...
   "Every night Chris reads a number of pages that can be rounded to the nearest hundred."
Then it asks you ...
   "On what nights does Chris read a number of pages that can be rounded to the nearest hundred?"
If we take the problem statement at face value, the answer must be ...
   "Every night."