Which of the following approaches to determine bad debts expense best achieves the matching concept? O Percentage of ending accounts receivable. O Percentage of sales. O Percentage of average accounts receivable. O Direct write off. What is the single most important indicator used to identify impaired accounts receivable? The customer's payment history. The age of the accounts. Industry in which the company operates. O Credit reports and references. The following information is available for Pirate Company: Allowance for Doubtful Accounts at December 31, 2020 Credit Sales during 2021 Accounts Receivable deemed worthless and written off during 2021 $7,000 270,000 2,800 As a result of a review and aging of Accounts Receivable in early January 2022, however, it has been determined that an Allowance For Doubtful Accounts of $7,500 is required at December 31, 2021. What amount should Pirate record as bad debt expense for calendar 2021? $7,500 $4,200 O $3,300 O $74,000 Sudan Ltd's allowance for doubtful accounts was $85,000 at the end of 2020 and $105,000 at the end of 2019. For the year ended December 31, 2020, Sudan reported bad debt expense of $18,000 in its income statement. What amount did Sudan debit to allowance for doubtful accounts during 2020 to write off actual bad debts? $20,000 $34,650 $38,000 O $12,000