I need help on 3 & 8. thank you.

Required information [The following information applies to the questions displayed below.) The following events occur for The Underwood Corporation during 2021 and 2022, its first two years of operations. June 12, 2021 Provide services to customers on account for $29,600. September 17, 2021 Receive $15,500 from customers on account. December 31, 2021 Estimate that 457 of accounts receivable at the end of the year will not be received. March 4, 2022 Provide services to customers on account for $44,600. May 20, 2022 Receive $10,000 from customers for services provided in 2021. July 2, 2022 Write oft the remaining amounts oved from services provided in 2021. October 19, 2022 Receive $35,500 from customers for services provided in 2022. December 31, 2022 Estimate that 451 of accounts receivable at the end of the year will not be received. Required: 1. Record transactions for each date. (If no entry is required for a particular transaction/event, select "No Journal Entry Required" in the first account field.) Answer is not complete. No Date General Journal Debit Credit 1 June 12, 2021 Accounts Receivable Service Revenue 29,600 29,600 2 September 17, 204 Cash 15,500 Accounts Receivable 15,500 - Debit No Credit General Journal Date 1 June 12, 2021 29,600 Accounts Receivable >> Service Revenue 29,600 2 September 17, 201 Cash 15,500 Accounts Receivable 15,500 3 December 31, 202 Bad Debt Expense 13,320 Allowance for Uncollectible Accounts 13,320 4 March 04, 2022 Accounts Receivable 44,600 Service Revenue 44,600 >> >> 5 May 20, 2022 Cash 10,000 Accounts Receivable 10,000 6 July 02, 2022 No Transaction Recorded 7 35,500 October 19, 2022 Cash Accounts Receivable 35,500 8 December 31, 202 Bad Debt Expense 20,070 Allowance for Uncollectible Accounts 20.070