Jack and Jill have just had their first child. If college is expected to cost $180,000 per year in 18 years, how much should the couple begin depositing annually at the end of the next 18 years to accumulate enough funds to pay 1 year of tuition 18 years frm now? Assume that they can earn a 7% annual rate of return on their investment. The amount that the couple should begin depositing annually at the end of each year is $. (Round to the nearest cent.)