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chris plans to mulch the border surrounding a rectangular garden in his backyard. if the length, l, of the garden (excluding its border) is 3 more than twice its width, w, and the width of the border is 1/4 w, which function represents the area, a, to be mulched in terms of w?

Step 1:
 width of the garden: w
 length of the garden: 2w+3
 Step 2:
 width of the entire plot: w+0.5w=1.5w
 length of the entire plot: (2w+3) + 0.5w = 2.5w+3  
 Step 3:
 area of the garden: w(2w+3)
 area of the entire plot: 1.5w(2.5w+3)
 Step 4:
 area of the garden: 2w^2+3w
 area of the entire plot: 3.75w^2+4.5w
 Step 5:
 area of border= area of the entire plot - area of the garden
 area of border= 3.75w^2+4.5w - (2w^2+3w)
 Step 6:
 area of border= 3.75w^2+4.5w - 2w^2 - 3w
 Step 7:
 area of border= 1.75w^2+1.5w  

5(2a-5+b). xbox xboxxbx xb