please show calcutions

2) Sourcan Inc. began the month of October with a $3,700 credit balance in Allowance for Doubtful Accounts. The company had the following transactions during the month: Oct.4/23: Recovered $3,500 from C. Mac, a customer whose account had been written off in the summer. Oct.16/23: Wrote off the account of R. Div, a customer who owed Sourcan Inc. $6,000. Oct.31/23: Had the following information in its aged A/R subledger: Required (15 marks): Prepare all required journal entries for the month of October, including any adjusting entries needed. Show your work