A furniture company is producing two type of furniture. Product A requires 8 board feet of wood and 2 Ibs of wicker. Product B requires 6 board feet of wood and 6 Ibs of wicker. There are 2000 board feet of wood available for product and 1000 !bs of wicker. Product A earns profit margin of $30 a unit and Product B earns a profit margin of $40 a unit. What should the objective function be