9.4.23 Roy bought a $34.000, 26-week T-bil at a discount rate of 58% on August 2. He soldt 12 weeks later at a discount rate of 6.1%. Find Roy's purchase price, the discount 12 weeks later when he sold it, the proceeds to Roy, and the effective interest rate for the time he held the note. (Hint Treat T-bills as a discount note) Roy's purchase price was $ (Round to the nearest cent as needed.)