
Answer:
(a) Prepare the adjusting journal entry to record bad debt expense for the year with Allowance for Doubtful Account of $ 3,041
Dr Bad Debt Expenses            $10,150
 Cr Allowance for doubtful debt    $10,150
(b) Prepare the adjusting journal entry to record bad debt expense for the year with Allowance for Doubtful Account of $ 918
Dr Bad Debt Expenses            $14,109
 Cr Allowance for doubtful debt    $14,109
Explanation:
The Allowance for Doubtful Account will have the Balance of : 439,700 x 3% = $13,191
(a): Bad Debt Expenses needs to be recorded: 13,191 - 3,041 = $10,150
(b): Bad Debt Expenses needs to be recorded: 13,191 + 918 = $14,109