Suppose the network in the figure below represents a transportation network with a limited capacity where the nodes represent cities and numbers on the arcs between any two connected cities represent the maximum daily number of vehicles the road can handle (in thousands): Formulate a linear mathematical model to find the maximum number of vehicles that go through the network in any given day between city 1 and 9. Clearly define your decision variables, objective function, and constraints. Use Excel solver to find the optimal solution of the model your formulated and include a screen shot of your solution. 9 10