If the one-year discount factor is 0.9091, what is the one-year interest rate? Note: Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places. If the two-year interest rate is 10.0%, what is the two-year discount factor? Note: Do not round intermediate calculations. Round your answer to 4 decimal places. Given these one- and two-year discount factors, calculate the two-year annuity factor. Note: Do not round intermediate calculations. Round your answer to 4 decimal places. If the PV of $10 a year for three years is $24.87, what is the three-year annuity factor? Note: Do not round intermediate calculations. Round your answer to 4 decimal places