You invest X dollars in a mutual fund and 10 years later you have 2X dollars. That is, you double the amount in 10 years. So, the corresponding compounding annual rate i is exactly 10% more than 10% less than 10% not enough information What is the balance in an investment account at the end of 7 years if $ 14,000 is deposited today and the account earns 6.67% interest? $21,000 $22,290 $22,391 $ 22,000