Formulation Problem A farmer has 10 acres to plant in wheat, beans, and rye. He has to plant at least 7 acres. However, he has only $1800 to spend, and each acre of wheat costs $200 to plant, each acre of beans costs $90 to plant, and each acre of rye costs $100 to plant. Moreover, the farmer has to get the planting done in 12 hours and it takes an hour to plant an acre of wheat and beans, and 2 hours to plant an acre of rye. If the profit is $500 per acre of wheat, 250$ per acre of beans, and $300 per acre of rye, how many acres of each should be planted to maximize profits