In 2019, Duncan Company reports the following financial information before adjustments. Debit Credit Accounts Receivable, 12/31/19 150,000 Allowance for Uncollectible Accounts, 12/31/19 2,200 Sales (all on credit, 12/31/19 900.000 Sales Returns and Allowances, 12/31/19 51,000 Instructions a: Prepare the appropriate year-end journal entry to record the estimated bad debt expense assuming Duncan Company estimates bad debts at 1% of net sales. b. Prepare the appropriate year-end journal entry to record the estimated bad debt expense assuming Duncan Company estimates bad debts at 4.5% of gross accounts receivable. c. Prepare the appropriate year-end journal entry to record the estimated bad debt expense assuming the same facts in part b and that Duncan Company's Allowance for Uncollectible Account has a debit balance of $800