NBM Corp. Manufactures chairs and tables. Each table requires 40 feet of lumber and 3 hours of labor. Every chair requires 16 feet of lumber and 4 hours of labor. The profit for each table is $ 45. The profit for each chair it's $ 20. The company has 3,200 feet of lumber and 420 hours of labor. Determine the maximum possible gain with the limitations of wood and labor provided