Needs someone assistance on the problem below....




A farmer has 1000 acres of land on which corn, wheat, or soybeans can be grown. Each acre of corn costs $100 for preparation, requires 7 days of labor, and yields a profit of $30. An acre of wheat costs $120 to prepare, requires 10 days of laobr, and yields $40 profit. An acre of soybeans costs $70 to prepare, requires 8 days of labor, and yields $40 profit. If the farmer has $10,000 for preparation and can count on enough workers to supply 8000 days of labor,how many acres should be devoted to each crop to maximize profits?