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0-30 31-60 61-90 91-120 Total $400,000 Over 120 $10,000 A/R $210,000 $100,000 $60,000 $20,000 % 1% 4% %5 15% 25% Estimated Bad Debt At December 31, 2019, the unadjusted balance in Allowance for Uncollectible Accounts is a credit of $1,700. Instructions: a. Journalize and post the adjusting entry for bad debts at December 31, 2019. b. Journalize and post to the allowance account these 2020 events and transactions: a. March 31, a $1,500 customer balance originating in 2009 is judged uncollectible. b. May 31, a check for $500 was received from the customer whose account was written off as uncollectible on March 31 C. Journalize the adjusting entry for bad debts on December 31, 2020, assuming that the unadjlsted balance in Allowance for Uncollectible Accounts is a debit of $800 and the aging schedule indicates that total estimated bad debts will be $33,300