Anewly created design business, teri's art, is finishing its first year of operations. during the year, credit sales were $43,000 and collections of credit sales were $35,000. one account for $600 was written off. teri's art uses the aging-of-receivables method to account for bad debts expense. it has estimated $275 as uncollectible at year-end. what is the amount of the bad debts expense for the first year of operations?