I need help with part b

5.1.27 A 3-month $13,000 treasury bill with a simple annual discount rate of 0.28% was sold in 2016. Assume 365 days in a year. (a) Find the price of the treasury bill (T-bill). (b) Find the actual interest rate paid by the Treasury. (a) The price of the T-bill was $ 12990.9 (Round to the nearest cont as needed.) (b) The actual interest rate paid by the Treasury is %. (Type an integer or decimal rounded to five decimal places as needed.)