The following summarizes the aging of accounts receivable for Johnston Supplies, Inc. as of July 31, 2019: 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. 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. Journal entry worksheet Record the adjusting entry to record bad debt expense for the year July 31