Order the following set of rational numbers from least to greatest, and explain how you determined their order. numbers: 0, -½, 1, -3 ⅓, 6, 5, -1, 21/5, 4

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books