Answer:
14 minutes below or 6 minutes above
Step-by-step explanation:
Let's say Sophia's time was 10 minutes WORSE 
4 minutes below average- 10 minutes= 14 minutes below average
Let's say Sophia's time was ten minutes BETTER
4 minutes below average + 10 minutes= 6 minutes above average.
Hope this helps!
 
        
                    
             
        
        
        
The answer is 180 i hope i helped you :)
        
             
        
        
        
Step-by-step explanation:
two people I hope I could help
 
        
             
        
        
        
Answer:
24.75
Step-by-step explanation:
keychain=$6.75
t.shirt=X
according to question 
X+6.75=31.50
X=24.75
 
        
             
        
        
        
XYR=36 hope this helps I actually don't know if it is right so I'm so sry if it is wrong so sry