Find an initial solution to the following transportation problem. The starting solution using northwest-corner method is: From Los Angeles Calgary Panama City Supply Mexico City $6 $18 $8 120 Detroit $17 $13 $19 70 $20 $10 $24 50 2260 80 100 60 Ottawa Demand (Note: You must enter a shipment in every cell, even if the shipment is 0.) To From Los Angeles Calgary Panama City Supply $6 $18 $8 Mexico City 120 $17 $13 $19 Detroit 70 $20 $10 $24 50 Ottawa Demand 80 a) The total cost of the initial solution developed using the northwest-corner method = $ The starting solution using the intuitive lowest-cost method is: 100 60