Hot Dogs sold hot dog ingredients (i.e., buns, sausages) to Ham Campgrounds on 7/1/2020 and agreed to accept a $100,000, 1-year note with a discount rate of 10%, due on 6/30/2021. Provide any applicable journal entries for Hot Dogs on 7/1/2020, 12/31/2020, and 6/30/2021. If no entry is required, simply state none.

7/1/2020

12/31/2020

6/30/2021

What is the effective interest rate on this note (rounded to the nearest decimal)?