Your company in the Midwest has corn and grain warehouses in Kansas City, Omaha and Des Moine. You ship commodities to your food mills in Chicago, St. Louis and Cincinnati. The maximum storage in Kansas City is 170. The maximum storage in Omaha is 250. The maximum storage in Des Moine is 200. You can store less, but you can't store more than these amounts in these storage facilities. The demand in Chicago that must be satisfied is 200; The demand in St. Louis that must be satisfied is 150; The demand in Cincinnati that must be satisfied is 250. You must meet these demand levels. From Kansas City, it costs $7 to ship to Chicago, $8 to St. Louis and $10 Cincinnati. From Omaha, it costs $6 to ship to Chicago, $11 to St. Louis and $11 to Cincinnati. From Des Moines, it costs $5 to ship to Chicago, $4 to St. Louis and $12 to Cincinnati.