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 6e days past due Total Accounts Receivable $126,900 89,600 54,000 32,200 Historical Uncollectible 2% 12% 18% 33% Required: a. The unadjusted balance of the Allowance for Doubtful Accounts of Johnston Supplies, Inc. is a credit balance in the amount of $29,067 on July 31, 2019. Prepare the required adjusting entry to record Bad Debt Expense for the year. b. Johnston Supplies, Inc. writes off $3,121 of uncollectible accounts on August 15, 2019. Prepare the required adjusting entry to record the write-off 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 hnston Sunnies, Inc. is a credit balance in the amount of $29,067