I plan to sell 10,000 upholstered chairs and 5000 upholstered sofas. The chairs require 6 board feet of wood and 3 yards of upholstery material. The sofas require 24 board feet of wood and 12 yards of material. I want to keep an inventory of 10000 yards of material and 20000 board feet of wood. Current beginning raw materials inventory is 9000 yards of material and 21000 board feet of wood. The materials cost $10 a yard and the wood cost $5 per board feet. You will use this same set of facts for every question on this test. How many board feet of wood will I need to make 10,000 chairs and 5000 sofas?