Blackhorse Productions, Incorporated, used the aging of accounts receivable method to estimate that its Allowance for Doubrfu! Accounts should be $20,100. The account had an unadjusted credit balance of $11,000 at that time Required: Prepare joumal entries for each of the following: (If no entry is required for a transoction/event, select "No Journal Entry Required" in the first account field.) a. The appropriate bad debt adjustment was recorded. b. Later, an account recelvable for $1,100 was determined to be uncolectible and was written off