21/2 is the answer I think!
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Can I have the rest of the question(picture)?
 
        
                    
             
        
        
        
10^8=100000000
100000000x6.71=671,000,000
 
        
             
        
        
        
1/2n+8=c one half of n plus 8 equals c
        
             
        
        
        
Answer:
As the depth decreases. the temperature of the water increases.
Step-by-step explanation:
The graph is showing the depth increasing (to the right) and the temperature decreasing (down).