Answer:
b. $21,000
Step-by-step explanation:
When a company makes sales on account, debit accounts receivable and credit sales. Based on assessment, some or all of the receivables may be uncollectible.
To account for this, debit bad debit expense and credit allowance for doubtful debt. Should the debt become uncollectible (i.e go bad), debit allowance for doubtful debt and credit accounts receivable.
Where a debit that had previously been determined to have gone bad gets settled, debit cash and credit bad debt expense.
The amount that should be debited to Bad Debt Expense and credited to Allowance for Doubtful Accounts in the year-end adjusting entry is the sum of the debit balance in the Allowance for Doubtful Accounts and the amount suggested by the aging of receivables.
= $9,000 + $12,000
= $21,000