What is 218 rounding to the nearest 100

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.

Plz , will award brainliest find an equation for the line that goes through the points (5,-8) and (13,4)

Which of the following describes how to calculate the value of x?