What is the range of the mapping?

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

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?