The ledger of Sheffield Corp. at the end of the current year shows Accounts Receivable $80,300; Credit Sales $769,390; and Sales Returns and Allowances $41,700.

(a)		If Sheffield Corp. uses the direct write-off method to account for uncollectible accounts, journalize the adjusting entry at December 31, assuming Sheffield Corp. determines that Matisses $820 balance is uncollectible.
(b)		If Allowance for Doubtful Accounts has a credit balance of $1,112 in the trial balance, journalize the adjusting entry at December 31, assuming bad debts are expected to be 11% of accounts receivable.
(c)		If Allowance for Doubtful Accounts has a debit balance of $450 in the trial balance, journalize the adjusting entry at December 31, assuming bad debts are expected to be 9% of accounts receivable.