Need help with these two problems

Homework: Time Value of Money Assignment Saved 3 If you earn 8% per year on your bank account, how long will it take an account with $105 to double to $210? (Do not round intermediate calculations. Round your answer to 2 decimal places.) 1.64 Number of years points Skipped eBook Hint PrintHomework: Time Value of Money Assignment 0 Saved 5 1.64 polnts Skipped Your wealthy uncle established a $2,100 bank account for you when you were born, For the first 9 years ofyour life, the interest rate earned on the account was 4%. Since then, rates have been only 2% Now you are 23 years old and ready to cash in. How much is in your account? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Aanl'it