Boise lumber has decided to enter the lucrative prefabricated housing business. initially, it plans to offer three models: standard, deluxe, and luxury. each house is prefabricated and partially assembled in the factory, and the final assembly is completed on site. the dollar amount of building material required, the amount of labor required in the factory for prefabrication and partial assembly, the amount of on-site labor required, and the profit per unit are as follows.