A summer camp is organizing a hike and needs to buy granola bars for the campers.
The granola bars come in small boxes and large boxes. Each small box has 12 granola
bars and each large box has 18 granola bars. The camp bought a total of 15 boxes that
have 240 granola bars altogether. Write a system of equations that could be used to
determine the number of small boxes purchased and the number of large boxes
purchased. Define the variables that you use to write the system.