I am still getting the incomplete error on this question. Please help

1-a. Prepare a T-account for the Allowance for Doubtful Accounts and enter into it the 2016 amounts from the above schedule. The balance at the beginning of each year in the Allowance for Doubtful Accounts is a credit balance. 1-b. Write the T-account in equation format to prove the above items account for the changes in the account. 2. Record summary journal entries for 2017 related to (a) estimating Bad Debt Expense and (b) writing off specific customer account balances. 3. Supply the missing information for 2018. 4. If Away Travel had written off an additional $30 of Accounts Receivable during 2018, by how much would Net Receivables have decreased? How much would Net Income have decreased? x Answer is not complete. Complete this question by entering your answers in the tabs below. Req 1A Req 1B Req 2 Req 3 Reg 4 Prepare a T-account for the Allowance for Doubtful Accounts and enter into it the 2016 amounts from the above schedule. The balance at the beginning of each year in the Allowance for Doubtful Accounts is a credit balance. (Enter your answers in millions.) + Allowance for Doubtful Accounts Debit Credit Beginning Balance 37 19 Bad Debt Expense Write-Offs 21 Ending Balance 35