A man wants to help provide a college education for his young daughter. He can afford to invest $1500/yr for the next 5 years, beginning on the girl 's 5th birthday. He wishes to give his daughter $10,000 on her 18th, 19th , 20th, and 21 st birthdays, for a total of $40,000. Assuming 6% interest, what uniform annual investment will he have to make on the girl's 9th through 17th birthdays?