The bradely family is considering two products: corn and tobacco. Each acre of corn needs 0.016 labor and $100, each acre of tobacco needs 0.022 labor and $238. The family has $70000 in cash and plans to hire 9 laborers. There are up to 650 acres of fields to plant the two products. At least 90 acres must be used to plant tobacco. The profit from each acre of corn is $400, and the profit from each acre of tobacco is $780. Formulate a linear program for determining how many acres of each crop to plant as to make their total profit maximized