Answer:
9.275 inches or 9 11/40
Step-by-step explanation:
current depth = beginning depth - inches swam up + inches swam down 
8 3/4 - 2 3/5 + 3 1/8
 = 9 11/40
 = 9 11/40
 
        
             
        
        
        
Answer:

Step-by-step explanation:
remember when dividing with fractions, you are multiplying by the reciprocal.
this means

 
        
                    
             
        
        
        
Answer:
The one in the middle and the one on the right?
Step-by-step explanation:
 
        
                    
             
        
        
        
(x-3)^2 x=a number in this case