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6. All of Urdaneta Company's sales are on available for 2005: Allowance for doubtful accounts, 1/1/2005 Sales Sales returns Accounts written off as uncollectible Recovery of accounts written off a credit basis. The following information is 600,000 200,000 Urdaneta provides for doubtful accounts expense at the rate of 10% of net sales. At December 31 , 2005, the allowance for doubtful accounts balance should be b.