On November 1, 2019, Mandrake Corp. and Olivier Ltd. reached an agreement to convert Olivier's outstanding account receivable of $27,000 into a 3-month, 8% note receivable. On February 1, 2020, Olivier dishonoured the note receivable.Prepare all required journal entries for Mandrake for the above transactions, assuming a December 31 year end and assuming adjusting journal entries are recorded at the end of its fiscal year.