A company invest $20,000 in a CD that earns 9% compounded continuously how long will it take for the account to be worth $70,000??The account will be worth approximately $70,000 in about? _ years

A company invests $20,000 in a CD that earns 9% compounded continuously. How long will it take for the account to be worth $70,000? . . . The account will be worth approximately $70,000 in about |years. (Do not round until the final answer. Then round to the nearest tenth as needed.)