Kirk Van$$ Houten, who has been married for $22$years$,$ would like to buy his wife an expensive diamond ring with a platinum setting on their$30-$year wedding anniversary. Assume that the cost of the ring will be $$$ $11,500$ in $8$ years. Kirk currently has $$$ $4,433$ to invest. What annual rate of return must Kirk earn on his investment to accumulate enough money to pay for the$$ ring?