The area of a rectangular plot 30 feet long and 20 feet wide will be doubled by creating a border around the plot. Which equation can be used to find the width of the border? (x 20)(x 30) = 1200 (2x 20)(2x 30) = 1200 (2x 20)(2x 30) = 600 (x 20)(x 30) = 600
