A father wants to set aside money for his 8 years- old daughter's future education, by making monthly deposits to a bank account that pays 8% per year, compounded annually. What equal monthly deposits must the father make the first 1 month after her 9th birthday and the last on her 17th birthday in order for her to withdraw $4,000 on each of her four birthdays (the 18th throuhg the 21st)