If you have a Scientific calculator you can type this in
        
             
        
        
        
Answer:
Y = X - 2 would be the answer.
 
        
                    
             
        
        
        
Answer:
Infinitely many solutions
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
  
Step-by-step explanation:
                                
 
        
             
        
        
        
To solve we have the following equation below,
Assumption: Line of reference is the surface of the water.
Final distance between Jana & fishing line = (dock height) +(reels out) -(reels back)  
Final distance between Jana & fishing line = 10 + 35+ 29 - 7 = 67 feet
<em> ANSWER: 67 feet</em>