X=the missing value 
the median is the middle number, but in this case there are two which happens to be 25 and x 
so the formula is 
25+x/2=31.5 
use algebra to solve 
25+x=63 
x=63-25 
x= 38 
Therefore, the missing value is 38.
Hope this helped. Let me know if you have any further questions:)
        
             
        
        
        
Answer:15
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The first Answer is
  x-min = 0, x-max = 20
What is the best window range of y-values to find the solution?
y-min = 20 , y-max = 40
What is the solution?
8 games will cost $32
 
        
             
        
        
        
Answer:
m = 36
Step-by-step explanation:
1/3 m+3- 5/6 m=-15
2m+18-5m=-90
-3m+18=-90
-3m=-90-18
-3m=-108
m=36