7. Philo T. Farmsworth is a corn farmer with a 40-acre tract of land. Each acre can produce 100 bushels of corn. The cost of planting the tract in corn is $20,000, and the cost of harvesting the corn is $10,000. In May, when corn is selling for $10 per bushel, Philo plants his crop. In September the price of corn has fallen to $2 per bushel. What should Philo do? Explain, assuming that there are no costs involved with bringing the corn to market to sell.