(Related to Checkpoint 5.6) (Solving for i ) Kirk Van Houten, who has been married for 21 years, would like to buy his wife an expensive diamond ring with a platinum setting on their 30 -year wedding anniversary. Assume that the cost of the ring will be $10,000 in 9 years. Kirk currently has $4,405 to invest. What annual rate of return must Kirk earn on his investment to accumulate enough money to pay for the ring