During its first year of operations, Gavin Company had credit sales of $3,000,000; $600,000 remained uncollected at year-end. The credit manager estimates that $31,000 of these receivables will become uncollectible. a. Prepare the journal entry to record the estimated uncollectibles. b. Prepare the current assets section of the balance sheet for Gavin Company. Assume that in addition to the receivables it has cash of $90,000, inventory of $130,000, and prepaid insurance of $7,500