Jin is taking a multiple choice test with a total of 50 points available. Each question is worth exactly 2 points. What would be Jin's test score (out of 50) if he got 4 questions wrong? What would be his score if he got xx questions wrong?

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