Last 2 questions of the night then off to go help other people please help me! Thank you so much and have a good night! It's my first day here and ive already answered around 20 questions i'm loving it!

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.