Convert these amounts so they have the same units then express each pair as a ratio in its simplest form A) 5 days to 3 weeks and more l will tell yall once y'all ask pls hell ​

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