Question: 3d. Find the optimal objective function value for the minimum cost network flow problem shown below. Shown in the figure are upper bounds on

3d. Find the optimal objective function value for the minimum cost network flow problem shown below. Shown in the figure are upper bounds on flow and costs per unit flow for each arc. Net supplies are shown on the nodes (no value implies zero net supply at a node). (32) 1 540 590 640 690 30 $5 2 (-22) 4 20 $10 25 $15 $5 12 $4 12 $11 $14 3 5) (-10) $5

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