please help with these accounting problems! all questions please and thank you!

= Evvv 15. A company has an ending accounts receivable balance of $1,800,000 and it estimates that uncollectible accounts will be 2% of the receivable balance. If Allowance for Doubtful Accounts has a credit balance of $4,000 prior to adjustment, its balance after adjustment will be a credit of A) $40,000 B) $36,000 C) $35,920. D) $32,000. 16. Smithson Corporation's unadjusted trial balance includes the following balances (assume normal balances): Accounts Receivable $1,119,000 Allowances for Doubtful Accounts $ 21,300 Bad debts are estimated to be 6% of outstanding receivables. What amount of bad debt expense will the company record? A) $67,140 B) $45,840 C) $44,562 D) $68,418 17. The interest on a $20,000, 6%, 60-day note receivable is A) $1,200. B) $200. C) $400. D) $600. 18. The interest on a $10,000,9%, 90-day note receivable is A) $225. B) $900. C) $75. D) $150