receivables will be uncollectible. Required: 1. Calculate Ingrid's balance in accounts receivable on December 31, prior to the adjustment. $ 2. Calculate Ingrid's balance in allowance for doubtful accounts on December 31, prior to the adjustment. $ 3. Prepare the necessary adjusting entry at year end. If an amount box does not require an entry, leave it blank. Record adjusting entry for allowance for doubtful accounts estimate