Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2 + 1 inches, and its perimeter is 4(2x2 + 1) inches. If x = 3.5, how much ribbon does she need?
If so, 4(2[3.5]2+1)
3.5^2 = 12.25
4(2[12.25]+1)
4(24.5+1)
4(25.5)
25.5*4 = 102
So, she will need 102 inches of ribbon.