The amount of bad debt expense can be estimated by: The percent of sales approach. The percent of accounts receivable approach. The aging of accounts receivable approach. All of these answers are correct Question 5 Allowance for doubtful accounts is a: contra-asset account contra-revenue account contra-liability account contra-expense account Question 6 The aging of accounts receivable: does not consider the balance in the allowance for doubtful accounts does not consider the balance in bad debts expense considers the balance in the allowance for doubtful accounts considers the balance in Bad debts expense