 
Jerry T. answered  02/22/15
Tutor
                    
    New to Wyzant
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How about setting up an equation with what you know.  length x width = area    x=x width  x+9=width area= 580 ftsquared, so x(x+9)=580  solve for x.   Is that enough help?
     
     
             
                     
                     
                    
Hero M.
02/22/15