I need help with this problem. I have done the first part, but I don't know if its correct or not.

Thanks

Ernie's Market is a small independent chain of neighborhood grocery stores. Emie's distributes high volume product to its stores from a company owned and operated warehouse. Additionally, the company is looking to start a back-hauling program with its suppliers in an effort to reduce its transportation costs. Kimberly-Clark operates a factory in the vicinity of Ernie's stores and warehouse and will be the first participant in a pilot back- hauling program. Figure 1 is a road map showing the locations of Kimberly-Clark and Emie's Warehouse and stores and the distances along each of the road segments. Here are your tasks: 1. Ernie's believes that its costs are directly proportional to the transportation distance. Determine delivery and back-haul routes that will minimize Ernie's total costs. 2. Now, assume that the reverse transportation costs are not directly proportional to the distance, but instead are a linear function of the distance. Table 1 shows the reverse route cost ratios which can be used as multipliers to calculate the relative transportation costs associated with traversing road segments in the reverse direction. Find the cost minimizing return routes from the Kimberly-Clark factory to each of Ernie's stores and Ernie's warehouse Warehouse Figure 1 - Road System showing Ernie's Warehouse, Stores, and Kimberly-Clark Factory Ending Cost per Mile Ratio Warehouse Warehouse 2.00 1.50 2.00 2.00 1.75 1.75 1.75 1.25 1.25 1.50 1.25 Kimberly-Clark 2.00 1.75 Kimberly Clark Kimberly-Clark 1.25 Table 1 - Reverse Route Cost Multipliers On Route Distance Nodes From NetFlow Supply/Deman Warehouse Warehouse Warehouse Warehouse Immo HOOOOOOOOOOOOOO w UNA Kimberly-Clark Kimberly-Clark Kimberly-Clark NGWA Kimberly-Clark Total Distance 19