ANSWER
D 5
EXPLANATION
The diagonals bisect each other so,
AE=CE
This implies that 
3x+4+3x+4=38
6x+8=38
Group similar terms 
6x=38-8
6x=30
x=5
 
        
                    
             
        
        
        
Answer;  
1: when shawn woke up 
2: the temperature change is 27
Step-by-step explanation:
 
        
             
        
        
        
Answer:
So do you already have the answer? Also 1/20 looks right.
Step-by-step explanation:
 
        
                    
             
        
        
        
X=-4-y there you go enjoy