Please help me solve:

Prescott Industries transports sand and stone extracted from its open-pit mines located in Odessa and Bryan to its concrete block manufacturing facilities in Abilene, Tyler and San Angelo. For the capacities, locations, and shipment costs per truckload shown in the tableau below, determine the shipping pattern that will minimize transportation costs. What are the estimated transportation costs associated with this optimal allocation pattern? Fill in the tableau below by indicating the optimal number of shipments from a source to a destination in each cell. (Enter your responses as whole numbers. A response of " 0 " is equivalent to no shipments being planned.) The corresponding optimal total cost is : . (Enter your response as a whole number.)