Final answer:
Michael Co. should debit Notes Receivable and credit Accounts Receivable when recording this transaction.
Step-by-step explanation:
The correct way for Michael Co. to record this transaction is to debit Notes Receivable and credit Accounts Receivable. This is because Michael Co. is accepting a promissory note from Tony Co., which is considered a new receivable. By debiting Notes Receivable, Michael Co. is recording the increase in this new asset, while crediting Accounts Receivable reflects the decrease in the old asset.