Evaluate the expression:

v ⋅ w
given the vectors:
r = < 8, 1, -6> ; v = < 6, 7, -3> ; w = < -7, 5, 2> (2 points)

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