Denote by xij the quantity of product to ship from production facility i to retail outlet j. Thus, for example, x12 represents the quantity of product to ship from Nashville to Miami. How would you mathematically express the capacity constraint at Nashville? Remember that this constraint should impose that the number of shipments from the facility in Nashville cannot exceed the capacity of that facility. Denote by xij the quantity of product to ship from production facility i to retail outlet j. Thus, for example, x12 represents the quantity of product to ship from Nashville to Miami. How would you mathematically express the capacity constraint at Nashville? Remember that this constraint should impose that the number of shipments from the facility in Nashville cannot exceed the capacity of that facility. x21 x22 x23 x32 <= 220 x11 x12 x13 x14 <= 250 x21 x12 x23 x24<= 140 x21 x22 x23 x24<= 140