Solve the problem manually in external papers and take photos of the papers and combine them in one pdf and upload the file 2)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. Expected Production Demand Per Month Demand Days Day (computed) Jan 900 22 41 Feb 700 18 39 Mar 800 21 38 Apr 1,200 21 57 May 1,500 22 68 50 June 1000 20 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 55 per unite per month Subcontracting cost is $20 per unit