Zuo Software categorizes its accounts receivable into four age groups for purposes of estimating its allowance for uncollectible accounts. 1. Accounts not yet due = $400,000; estimated uncollectible = 8%. 2. Accounts 1–30 days past due = $50,000; estimated uncollectible = 15%. 3. Accounts 31–90 days past due = $40,000; estimated uncollectible = 30% 4. Accounts more than 90 days past due = $30,000; estimated uncollectible = 50%. At 12/31/2021, before recording any adjustments, Zuo has a credit balance of $22,000 in its allowance for uncollectible accounts. Required: 1. Estimate the appropriate 12/31/2021 balance for Zuo’s allowance for uncollectible accounts. 2. What journal entry should Zuo record to adjust its allowance for uncollectible accounts? 3. Calculate Zuo’s 12/31/2021 net accounts receivable balance.