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Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is inches. She plans to make a similar pillow, including the ribbon, whose side length is inches. What expression can be used for the length of ribbon that she needs for both pillows, and what is the length if ?
A flower bed is in the shape of a triangle with one side twice the length of the shortest side, and the third side is 23 feet more than the length of the shortest side. If the perimeter is 167, what are the three sides?