A company produces cars in Atlanta, Boston, Chicago, and Los Angeles. The cars are then shipped to warehouses in Memphis, Milwaukee, New York City, Denver, and San Francisco. The number of cars available at each plant is given in Table 75 below. Each warehouse needs to have available the number of cars given in Table 76 below. The distance (in miles) between the cities is given in Table 77 below. Assuming that the cost (in dollars) of shipping a car equals the distance between two cities, determine an optimal shipping schedule. Assuming that the cost (in dollars) of shipping a car equals the square root of the distance between two cities, determine an optimal shipping schedule.