The following summarizes the aging of accounts receivable for Johnston Supplies, Inc. as of July 31, 2016: Total Accounts Receivable $128,000 $90,700 $55,100 $33,300 Number of Days Unpaid Historical % Uncollectible Not yet due 1-30 days past due 31-60 days past due Over 60 days past due 5% 10% 16% 35% Required: a. The unadjusted balance of the Allowance for Doubtful Accounts of Johnston Supplies, Inc. is a credit balance in the amount of $29,397 on July 31, 2016. Prepare the required adjusting entry to record Bad Debt Expense for the year. (If no entry is required for a transaction/event, select "No Journal Entry Required" in the first account field.) View transaction list Journal entry worksheet Journal entry worksheet Record the adjusting entry to record bad debt expense for the year July 31, 2016. Note: Enter debits before credits. Date General Journal Debit Credit July 31, 2016 Bad Debt Expense Allowance for Doubtful Accounts Record entry Clear entry View general journal b. Johnston Supplies, Inc. writes off $3,231 of uncollectible accounts on August 15, 2016. Prepare the required adjusting entry to record the write-off. (If no entry is required for a transaction/event, select "No Journa Entry Reguired" in the first account field. D. Johiston Suppies, inc. writes oft $3,231 of uncollectible accounts on August 15, 2016. Prepare the required adjusting entry to record the write-off. (If no entry is required for a transaction/event, select "No Journal Entry Required" in the first account field.) View transaction list Journal entry worksheet Record the required adjusting entry to record the write-off on August 31, 2016. Note: Enter debits before credits. Date General Journal Debit Credit August 31, 2016 Record entry Clear entry View general Journal Credit August 31, 2016 Record entry Clear entry View general journal c. Use a T-account to determine the account balance in the Allowance for Doubtful Accounts on August 15, 2016. Allowance for Doubtful Accounts