The following table provides data on shipping cost, capacity, and demand constraints on a per-month basis. Develop a linear programming model for this problem. (Let xij represent the flow from warehouse i to city j.) Min s.t. Warehouse 1 Flows Warehouse 2 Flows Warehouse 3 Flows Warehouse 4 Flows City 1 Flows City 2 Flows Develop a linear programming model for this problem. (Let xij represent the flow from warehouse i to city j.) Min s.t. Warehouse 1 Flows Warehouse 2 Flows Warehouse 3 Flows Warehouse 4 Flows City 1 Flows City 2 Flows City 3 Flows City 4 Flows xij>0foralliandj