Alice is having her birthday party at a game center. The center charges $100 plus $20 per guest. The total cost of the party y can be
represented by the equation y = 20x + 100. What does the y-intercept represent?
a. the number of guests
b. the cost to rent the game center
c. the cost per guest
d. Alice's age

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