Incineration reduces each ton of waste to 0.2 ton of debris, which must be dumped at one of two landfills. Each landfill can receive at most 200 tons of debris per day. It costs

$3 per mile to transport a ton of material (either debris or waste). Distances (in miles) between locations are listed in the file P04_107.xlsx. Determine how to minimize the total cost of disposing of the waste from both cities.