A shipping freighter has space for two more shipping containers, but the combined weight cannot go over 20 tons. Four shipping containers are being considered. The following table provides details on the weight (in tons) and value of the contents of each container. Container 1 2 3 4 Weight of container (tons) 7 6 9 5 Value / Container $5,500 $5,500 $6,000 $7,500 Develop a binary integer model that will determine the two containers that will maximize the value of the shipment. a.) Write down the constraints ( 4 points) b.) Write down the objective function (2 points) c.) Write the solution, which containers will be selected and what is the maximum value of the shipment. You can attach the answer report from excel (4 points) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)