Use the information in problem 8 (page 282) to create an optimization model to maximize profit for Shoeco. Information: Shoeco manufactures three types of shoes. Demand for shoes is unlimited, and 40 hours per week of machine time and labor are available. A pair of shoes yields the following profit and uses the number of minutes of machine time and labor given in the table below. Assuming the number of pairs of shoes made each week must be an integer, how can Shoeco maximize weekly profit? Note that by selecting your changing cells in the constraints, you can use the Int option to ensure that your changing cells assume integer values.