Bonaire Company had the following information on its accounting records prior to any year-end bed debt adjustment: Allowance for Doubtful Accounts, credit balance Credit Sales Cash Sales Gross Profit Sales Returns and Allowances Account Receivable Sales Discounts Selling and Administration Expenses $2,500 $520,000 $190,000 $170,000 $49,000 $150,000 $60,000 $131,000 Bonaire prepares an aging of accounts receivable and the result shows that 4% of accounts receivable is estimated to be uncollectible. How much is bad debt expense? 56,000 $20,800 $18,300 $28.400 $3.500