Answer:
6.5017%
Step-by-step explanation:
Given that,
Total cost of a college education when your child enters college in 16 years, Future value = $200,000
Amount today to invest, present value = $73,000
Time period = 16 years
Therefore,
Annual rate of interest:



r = 6.5017%
Therefore, the annual rate of interest you must earn on your investment to cover the cost of your child’s college education is 6.5017%.