Double your wealth. Kant Miss Company is promising its investors that it will double their money every 6 years. What annual rate is Kant Miss promising? Is this investment a good deal? If you invest $450 now and Kant Miss is able to deliver on its promise, how long will it take your investment to reach $28,000? Using the Rule of 72, what annual rate is Kant Miss promising?

% (Round to the nearest whole percentage.)