Find an initial solution to the following transportation problem. Calgary $18 From Mexico City Detroit Ottawa Demand Supply 100 Los Angeles $6 $17 $20 50 Panama City $8 $19 $24 $13 60 40 $10 80 70 The starting solution using northwest-corner method is: (Note: You must enter a shipment in every cell, even if the shipment is 0.) From Los Angeles Calgary Panama City Supply $61 Mexico City 100 $17 Detroit 60 Ottawa 40 Demand 50 80 - 70 a) The total cost of the initial solution developed using the northwest-corner method = $7. The starting solution using the intuitive lowest-cost method is: (Note: You must enter a shipment in every cell, even if the shipment is 0.) From Los Angeles Calgary Panama City Supply $18 Mexico City $8 100 $ | $17 $13 Detroit 60 $20 $10 Ottawa 40 Demand 50 b) The total cost of the initial solution developed using the intuitive lowest-cost method = $ . c) The total cost of the optimal solution = $17