Draw only the network representation for both questions don't solve. Thank you

Question 2 Arnoff Enterprises manufactures the central processing unit (CPU) for a line of personal computers. The CPUs are manufactured in Seattle, Columbus, and New York and shipped to warchouses in Pittsburgh, Mobile, Denver, Los Angeles, and Washington, D.C., for fur- ther distribution. The following table shows the number of CPUs available at each plant, the number of CPUs required by cach warehouse, and the shipping costs (dollars per unit): Warehouse Plant Seattle Columbus New York CPUs Required Pittsburgh 10 2 1 3000 Mobile 20 10 20 5000 Denver 5 8 7 4000 Los Angeles 9 30 10 6000 Washington 10 6 4 3000 CPUs Available 9000 4000 8000 21,000 Develop a network representation of this problem. Formulate as a LP. Solve Using EXCEL