At 7 percent interest, how long does it take to double your money? (Enter rounded answer as directed, but do not use the rounded numbers in intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).)

Length of time

years

Requirement 2:

At 7 percent interest, how long does it take to quadruple your money? (Enter rounded answer as directed, but do not use the rounded numbers in intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).)