Find the smallest number by which 1000 should be divided so as to get a perfect square?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

What is the anwers for 9+2x=5x-3-x

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