Devon has 80 books to pack in boxes. she packs 20 books i each box. how many boxes does she need?

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?

What is the slope of the line that contains the points (-2,1) and (0,-3)