The sales, all on account, of Lins Company in Year 6, its first year of operations, were $800,000. Collections totaled $500,000. On December 31, Year 6, Lins Company estimated that 3 percent of all sales would probably be uncollectible. On the same date, Lins Company wrote off specific accounts in the amount of $9,900. Required: a. What was the balance in the Accounts Receivable account at the end of Year 6? Give the amount and whether debit or credit. b. What was the balance in the Allowance for Uncollectible Accounts account at the end of Year 6? Give the amount and whether debit or credit. On December 31, Year 7, after all write-offs of specific accounts receivable identified during Year 7 as being uncollectible, but before the adjustment for the bad debt expense of year 7, Lins Company's has the following accounts and balances: Accounts Receivable (Dr.) Allowance for Uncollectible Accounts (Cr.) $280,000 8,000 On December 31, Year 7. Lins Company carried out an aging of its accounts receivable balances and estimated that the Year 7 ending balance of accounts receivable contained $19,000 of probable uncollectibles. It made adjusting entries appropriate for this estimate. Required: c. What was Bad Debt Expense for Year 7? d. What was the amount of specific accounts receivable written off as being uncollectible during Year 7