Requirement 1: At 7.50 percent interest, how long does it take to double your money? (Enter rounded answer as directed, but do not use rounded numbers in intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).) years Length of time k Requirement 2: At 7.50 percent interest, how long does it take to quadruple your money? (Enter rounded answer as directed, but do not use rounded numbers in intermediate calculations. Round your answer to 2 decimal places (e.g., 32.16).) years Length of time