Which of the following is the correct translation for the expression x-6? A. a number subtracted from 6
B. a negative number added to 6
C. the product of a number and -6
D. the difference between a number and 6

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.

How can i differentiate this equation?

Me i’m stuck on all these questions besides the two bottom ones