The following summarizes the aging of accounts receivable for Johnston Supplies, Inc. as of July 31, 2019: Number of Days Unpaid Not yet due 1-30 days past due 31-60 days past due Over 60 days past due Total Accounts Receivable $127,900 90,600 55,000 33,200 Historical Uncollectible 40 110 178 33 Required: a. The unadjusted balance of the Allowance for Doubtful Accounts of Johnston Supplies, Inc. is a credit balance in the amount of $29,367 on July 31, 2019. Prepare the required adjusting entry to record Bad Debt Expense for the year. b. Johnston Supplies, Inc. writes off $3,221 of uncollectible accounts on August 15, 2019. Prepare the required adjusting entry to c. Use a T-account to determine the account balance in the Allowance for Doubtful Accounts on August 15, 2019, Complete this question by entering your answers in the tabs below. Required a Required B Required The unadjusted balance of the Allowance for Doubtful Accounts of Johnston Supplies, Inc. is a credit balance in the amount of $29,367 on July 31, 2019. Prepare the required adjusting entry to record Bad Debt Expense for the year