Estimation of risk$-$free rate with T$-$Bills.

Consider an option that expires in $118$ days. The bid and ask discounts on the Treasury bill maturing in $121$ days are $6\mathrm{.}05$ and $5\mathrm{.}65,$ respectively. Find the approximate risk$-$free rate.

a$.$ What is the un$-$annualized discount rate?

Round your answer to two decimals.

b$.$ What is the T$-$bill price?

Round your answer to two decimals

b$.$ What is the approximate risk$-$free rate?

Round your answer to two decimals