please sir help me out quickly thank you so much

QUESTION 6 EnvoQuarry, a granite quarrying company, has secured a contract with three infrastructure contractors to supply daily granite aggregate requirement to their respective projects located at Selayang, Gombak and Kepong. EnvoQuarry has allocated three of its quarrying sites located at Damansara, Batu Caves and Templer to supply granite aggregates to the project sites. The quarry capacity at the respective quarry sites can supply the following number of truckloads of aggregate per day: Supply Capacity 60 Quarry Sites Damansara Batu Caves Templer 30 45 The project daily requirements for aggregates (in truckloads) are as follows: Requirement 40 Project Site Selayang Gombak Kepong 45 50 EnvoQuarry procurement department has provided the following transportation cost (in RM) per truckload to transport from each quarry sites to the project sites, as follows: From Quarry Sites To Project Sites Gombak Selayang 50 Kepong 20 Damansara 30 40 20 30 Batu Caves Templer 60 50 40 a. Using Transportation Simplex Method, determine a Heuristic Solution using Least Cost Method for EnvoQuarry. State the routes and total transportation cost. (3 marks) 5 b. Determine the optimal solution for EnvoQuarry using MODI and Stepping Stone Method. State the optimal routes and the total optimal cost. If the problem has alternative optimal solution, then find out an alternative optimal solution. (9 marks) (Total 12 marks)