please explain thoroughly:) thank you

Find an initial solution to the following transportation problem 0 To Calgary 518 From Mexico City Detroit Ottawa Demand Los Angeles 56 $17 520 50 Panama City 58 $19 S24 70 Supply 100 60 40 $13 $10 80 The starting solution using northwest-corner method is (Note You must enter a shentic every cell even the set 0) To From Los Angeles Calgary Panama City Supply S6 518 Se Mexico City $17 S12 S19 Detroit 100 I 60 $20 S10 S24 40 Ottawa Demand 50 80 TO a) The total cost of the initial solution developed using the northwest-comer methods Enter your answer in each of the answer boxes O Ottawa $20 510 $24 40 Demand 50 80 70 a) The total cost of the initial solution developed using the northwest-comer methods The starting solution using the intuitive lowest-cost method is (Note: You must enter a shiomentin every ween the shipment Jo From Los Angeles Calgary Panama City Soply 56 310 SE Mexico City 100 $17 151 Detroit 60 $121 520 SEE 1 53 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 solutions 2 of the answer in