What is the total cost of the 2010 plan? (Select the best answer.)

a. $500,000

b. $550,000

c. $600,000

d. $650,000 Questions 8–10 refer to the following information. Use mixed integer programming to prepare an optimal operations plan and then answer questions 8–10. Use an integer constraint for the number of employees. Set solver options as follows: Assume linear model; assume non-negative; tolerance 5 percent.

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Assumptions Regular time cost/employee/month Overtime cost/unit Inventory carrying cost/unit/month Hiring cost/employee Firing cost/employee Regular time productivity (units/month/employee) Maximum overtime units (units/month/employee) Ending inventory minimum (for each month) Beginning inventory (January 2010) Ending inventory target (December 2010) Current employment (January 2010) Ending employment target (December 2010) $3,000.00 $250.00 $5.00 $1,500.00 $2,500.00 10 2 250 300 350 20 15