Q4: Suppose that a farmer plants corn on his farm. In the first year, his yield is 1,500 kilograms of corn. However, its subsequent yields are expected to decrease by 10% over the previous year's yield since the weather conditions getting worse each year. Suppose that the selling price of corn is expected to be 83 per kilograms for the first year and the price is expected to increase at the rate of 5% over the previous year's price. At the end of each year, he deposits all his revenue for his child's college education at an interest rate of 7.5% compounded annually. What would be the amount in the bank at the end of seventh year?