12. You work as a sales manager for a toy manufacturer, and you currently have three salespeople on the road meeting buyers. Your salespeople are in Austin, TX; Boston, MA; and Chicago, IL. You want them to fly to three other cities: Denver, CO; Edmonton, Alberta; and Fargo, ND. The raph below shows the cost of airplane tickets in dollars between these cities. Austin 250 Denver 400 350 400 600 Boston Edmonton 350 200 400 Fargo Chicago 250 (1) (3 points) Write the cost matrix. (2) (7 points) Where should you send each of your salespeople in order to minimize the total airfare? Show your work.