A farmer has 10 acres to plant in wheat and rye. He has to plant at least 7 acres. However, he has only $1,500 to- spend and each acre of wheat costs $200 to plant and each acre of rye costs $125 to plant. Moreover, the farmer has to get the planting done in 13 hours and it takes an hour to plant an acre of wheat and 2 hours to plant an acre of rye. If the profit is $400 per acre of wheat and $300 per acre of rye how many acres of each should be planted to maximize profits? Define the problem and show obiective function and constraints for optimization problem in Excel.