a hotel manager is adding a tile border around the hotel's rectangular pool. let x represent the width of the pool, in feet. the length is 1 more than 2 times the width, as shown. find two expressions that represent the perimeter of the pool. use the expressions to describe two ways to find the perimeter. the length of each tile is 1 foot. if the width of the pool is 19 feet, and each tile costs $1.44, what would be the total cost of the tile for the border?