QUESTIONS PROBLEM B1 Roberts Company makes the models of sandals, all of which require the use of special machine, Only 200 hours of machine time are ever month. Data for the three products are as follows. Roberts can all of the product can make Walkar Runner Trekker Selling price $30 $40 $50 Variable cost 16 22 28 Contribution margin 18 28 Machine time in minutes 6 10 16 b. Required: Wall products required the same amount of machine time, which products should Roberts make? (5 points) Given the capacity constraint determine which product Roberts should make and what total monthly contribution margin Roberts would eam by making only that product. (10 points) How much would the selling price of the next most profitable (per machine hour) product have to rise to be as profitable as the product you selected in requirement b? (10 points)