15/Jan). T-Accounts have been provided for your calculations, but will not be marked. a) Prepare the adjusting entry required on Dec. 31, 2019 to estimate uncollectible receivables based on the aging analysis above. b) Prepare the adjusting entry required on Dec. 31, 2020 to estimate uncollectible receivables based on the aging analysis above. c) Show how Accounts Receivable would appear on the Dec. 31, 2020 balance sheet