(Related to Checkpoint 5.6) (Solving for Kirk Van Houten, who has been married for 22 years, would like to buy his wife an expensive diamond ring with a platinum seting on their 30-year wedding anniversary Assume that the cost of the ning will be $11,000 in 8 years. Kirk currently has $4,436 to invest. What annual rate of return must Kirk earn on his investment to accumulete enough money to pay for the ring? The annual rate of return Kins must earn on his investment to accumulate enough money to pay for the ring is % (Round to two decimal places.)