solve please and show the calculation of the period

Discount Case (1) 1. Sanford Co. sells $500,000 of 10% bonds on March 1, 2019. The bonds pay interest on September 1 and March 1. The due date of the bonds is September 1, 2022. The bonds yield 12%. Give entries through December 31, 2020 1- Compute the P.V of this bond issue 2- Compute the discount 3- Prepare the schedule of discount amortization 4- Record all journal entries required for 2019