A three-month Treasury bill and a six-month bill both sell at a discount of 10%. a-1. Calculate the annual yield of the three-month Treasury bill. (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Annual yield % a-2. Calculate the annual yield of the six-month Treasury bill. (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Annual yield %