A internet provider charges $36 for a modem and $12 per month. A second internet provider charges $18 per month but gives you a free modem. Write an inequality in one variable, solve, and graph on the number line. For what possible number of months is the cost of the second provider greater than the cost of the first provider?

George is folding a piece of paper to make an origami figure. each time he folds the paper, the thickness of the paper is doubled. the paper starts out flat, with a thickness of 1 millimeter. a. write a list of six ordered pairs showing the output as the thickness of the paper when the input is the number of times it is folded. explain how you came up with your ordered pairs. b. is this relation a function? explain why or why not using the ordered pairs you came up with in part a.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

What is the difference between the equations of a vertical and a horizontal line?