An investor purchased a Government of Canada 91-day T-bill with a face value of $100,000 on June 25 , 2022 , for $99,300. The T-bill was sold on July 28 to yield 2.45%. (15 pts) a) What was the market yield rate on June 25 ? b) What was the selling price on July 28 ? c) What is the rate of return realized by the investor