please help me to answer this exercise

Question 1 (a and b) and question 2

6. Murrysville Company had the following data available for 2016 (before making any adjustments): Accounts receivable, 12/31/16 Allowance for doubtful accounts Net credit sales, 2016 $343,200 (Dr.) 3,800 (Cr.) 829,000 (Cr.) Required: 1. Prepare the journal entry to recognize bad debts under the following assumptions: (a) Bad debts expense is expected to be 3% of net credit sales for the year and (b) Murrysville expects it will not be able to collect 7% of the balance in accounts receivable at year- end. 2. Assume instead that the balance in the allowance account is a $3,800 debit. How will this affect your answers to (1)