List the numbers from least to greatest 5 squared, 3.7, 1/2, -4, and -9/4

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.