How did i get this answer wrong? Can someone help me please

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

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

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?