In regards to aggregate planning. I need to work out my constraints equations. I am working from Sunil chopra q8 3. Basically I have 1,250 employees, no lay off policy. Overtime is limited to 20hrs p/p the work time a month before overtime is 8*20. There is no subcontracting or stockout option. There are 50 workers willing to be called in, if they are called in then they get treated like full time. It cost 800 to hire each of the 50 and 1200 to fire each of the 50. Overtime pay is 30, and it takes 0.16 per unit to be made. I need to work out the workforce, production, inventory, overtime and overtime production. constrants please help with equations.