Mrs. Smith is giving a homework pass to a student whose expression is equivalent to - i. Which expression will win the homework pass? A. i^36
B. i^37
C. i^38
D. i^39
Help pleaseee

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