publisher needs to send many books to a local book retailer and will send the books in a combination of small and large boxes. Each small box can hold 20 books and each large box can hold 40 books. There were 5 more large boxes sent than small boxes, which altogether can hold 320 books. Graphically solve a system of equations in order to determine the number of small boxes sent, x,x, and the number of large boxes sent,
