The Oak Works is a family-owned business that makes handcrafted dining room tables and chairs. They obtain the oak from a local tree farm, which ships them 2,500 pounds of oak each month. Each table uses 50 lbs of oak each month while each chair uses 25 lbs of oak. The family builds all the furniture itself and has 480 hours of labor available each month. Each table or chair requires six hours of labor. Each table nets Oak Works $400 in profit, while each chair nets $100 in profit. Since chairs are often sold with the tables, they want to produce at least twice as many chairs as tables. A. Formulate and solve a linear programming model for this problem on a spreadsheet.