Please solve the problem manually in external papers and take photos of the papers and combine them in one pdf and upload the file. A Juarez, Mexico, manufacturer of roofing supplies has developed monthly forecasts for a family of products. Data for the 6-month period January to June are presented in Table. Help the operation manager to evaluation and selection the best one (the minimum total cost). Plan 1: Constant workforce and 50 unites are the constant production level per day and no overtime, idle time, part time and no subcontracts. Plan 2: Constant of the workforce at the minimum daily requirement (38) and using the subcontract option to meet the demand. The costs information are: Each unit need 1.6 hrs (production time) and the average pay rat is $10 per hors. Inventory holding cost is 5$ per unite per month. Subcontracting cost is $20 per unit. Month Jan Feb Expected Demand 900 700 800 1,200 1,500 1,000 Mar Apr May June Production Days 22 18 21 21 22 20 Demand Per Day (computed) 41 39 38 57 68 50 The