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A summary of Milan Fashion's December 31, 2021, accounts receivable aging schedule is presented below along with the estimated percent uncollectible for each age group: Age Group Amount % 0-60 days $40,000 0.5 61-90 days 15,000 1.5 91-120 days 2,000 15.0 Over 120 days 800 80.0 The allowance for uncollectible accounts had a credit balance of $1,600 at January 1, 2021. During the year bad debts of $1,150 were written off. Also, $150 previously written off were paid by a customer. Required: a) Prepare all 2021 joumal entries with respect to bad debts and the allowance for uncollectible accounts. Show computations. b) Prepare a T account for the allowance for uncollectible accounts from 1/1 to 12/31/21