A small tie shop finds that at a sales level of x ties per day its marginal profit is MP (x )dollars per tie, where MP (x )equals 1.35 plus 0.02 x minus 0.0021 x squared. Also, the shop will lose $95 per day at a sales level of x equals 0. Find the profit from operating the shop at a sales level of x ties per day.

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.