Final answer:
The number corresponding to the account debited for accrued interest on a notes receivable is 9 (Interest Receivable), and the number for the account credited is 7 (Interest Earned).
Step-by-step explanation:
When journalizing the transaction of accrued interest on a notes receivable at the end of the year, we need to identify which accounts are affected. In this case, the interest that has been earned but not yet received would increase Interest Receivable (an asset), and the income statement would report the earned revenue under Interest Earned.
Therefore, the Interest Receivable account, which is an asset, gets debited, reflecting an increase in assets. The Interest Earned account gets credited, reflecting an increase in revenue. According to the given list, the number corresponding to the account debited is 9 (Interest Receivable) and the number corresponding to the account credited is 7 (Interest Earned).