In 1988 the average tuition for one year at an Ivy League school was $1,800 (PV). Thirty years later, in 2018, the average cost was $13,700(FV). What is the annual growth rate (I) in tuition over this 30-year period (N)? Hint: remember to change one of the cash flows to a negative amount.
Group of answer choices
12%
9%
6%
7%