Mr. nelson used 3/8 of his money to buy some pens and 2/5 of the remainder to buy 2 notebooks. a notebook costs 3 times as much as a pen. how many pens did he buy?

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