Mike music sold 287 's on the first day of a 2day sale ,the store sold 96 more cd on the second day than on the first day ? how many cd in all were sold during the 2 day sale

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.