Answer:
Step-by-step explanation:
The journal entries are shown below:
On January 31
Allowance for doubtful accounts A/c Dr $800
To Account receivable A/c $800
(Being the written off amount is recorded)
On January 31
Account receivable A/c Dr $300
To Allowance for doubtful accounts A/c $300
(Being the reverse entry is made)
On March 9
Cash A/c Dr $300
To Accounts receivable A/c $300
(Being the amount is collected)