Please help as soon as possible.

How far could you drive on 50 gallons of gas

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

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