Consider a four-month sales and operations planning problem with the monthly demand data shown in the table below. Every plan should start and end with 6 employees and should start (at the beginning of January) and end (at the end of April) with 50 units of inventory. Each employee makes 20 units per month and each hire costs $1000 and each layoff (firing) costs $500.

Month	Demand (units)
January	160
February	210
March	170
April	180

(3 pts.) a) How many employees would there be in March for Level plan?

Number of Employees in March for Level plan = ___________

(3 pts.) b) What would be the cost for hiring and firing for a Level plan?

Cost for hiring and firing = __________

(3 pts.) c) What would be the total inventory (summed over the 4 months) for a Level plan?

Total inventory (over the 4 months) = __________

(3 pts.) d) How many employees would there be in March for Chase plan?

Number of Employees in March for Chase plan = __________