1. For a school science project, John noted the temperature at the same time every day for one week. The high temperature for the week was 27 degrees, and the low temperature for the week was -3 degrees. What is the difference between the high and low temperatures John recorded?

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.