Long-Term Investments Exercises 41–48 are based on the following table...

Long-Term Investments Exercises 41–48 are based on the following table, which lists interest rates on long-term investments (based on 10-year government bonds) in several countries in 2011. HINT [See Example 3.]

If the interest on a long-term Australia investment is compounded continuously, how long will it take the value of an investment to double? (Give an answer correct to 2 decimal places.)