On January 1, 2019, Worthylake Company sold used machinery to Brown Company, accepting a $30,000, non-interest-bearing note maturing on January 1, 2021. Worthylake carried the machinery on its books at a cost of $21,000 and a current book value of $15,000. Neither the fair value of the machinery nor the note was determinable at the time of sale; however, Brown's incremental borrowing rate was 10%. Required: Prepare the journal entries on Worthylake's books to record: 1. sale of the machinery 2. related adjusting entries on December 31, 2019, and 2020 3. payment of the note by Brown on January 1, 2021