Happy Furniture has the capability to manufacture desks, cabinets, and chairs, In order to manufacture these products, it must rent the appropriate equipment at a weekly cost of $2000 for the desks, $2500 for the cabinets, and $1500 for the chairs. The labour and material requirements for each product are shown in the table below, along with the selling price and variable cost to manufacture. Three are 2500 labour hours and 4000 square feet of lumber available each week. Chairs have to be made if any desks are produced. Determine the product mix that maximize weekly profit. Solve using either Excel or Lingo, and explain the results