pls answer a, b, c

Find an initial solution to the following transportation problem From Mexico City Detroit Ottawa Demand Los Angeles $6 $17 $20 140 Calgary $18 $13 $10 80 Panama City $8 $19 $24 100 Supply 160 90 70 The starting solution using northwest-corner method is (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 160 $17 $13) $19 Detroit 90 $20 $10 $24 Ottawa 70 be ta Demand 140 80 100 a) The total cost of the initial solution developed using the northwest-corner method - $ The starting solution using the intuitive lowest-cost method is a) The total cost of the initial solution developed using the northwest-comer method = 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.) To From Los Angeles Calgary Panama City Supply $6 $18 $8 Mexico City 160 $17 $13 $19 Detroit 90 $20 $10 $24 Ottawa 70 Demand 140 80 100 b) The total cost of the initial solution developed using the intuitive lowest-cost method=$1 c) The total cost of the optimal solution - $7