Answer: there is nothing here to help, this question is incomplete
Step-by-step explanation:
 
        
                    
             
        
        
        
For this case we have the following equation:
 
 Where,
 w: The weight of a spring in pounds
 E: the energy stored by the spring in joules.
 Substituting values we have: 

 Making the corresponding calculation: 
 Answer:
 Answer:
 the approximate weight of the spring in pounds is:
  
 
        
        
        
First of all why is there 2 similar equation connected to one another?
Second in order to solve this all you need to do is plug in the number and solve for x 
For 485 
85x+60=485
85x=420
X=5 
Do the same thing and you get 3