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The amount of uncollectible accounts at the end of the year is estimated to be $30,500, using the aging of accounts receivable method. The balance in the Allowance of Doubtful Accounts account is an $1 the before adjustment. What is the adjusted balance of the Allowance for Doubtful Accounts at the end of year? O $40,700. O $30 soo. O $10,20o. O $20.30o