Answer and Explanation:
The journal entries are shown below;
On Mar 11.
Bad debt exp $8,700
To Accounts receivable $8,700
(Being the bad debt expense is recorded)
On Mar 29
Accounts receivable $8,700
To Bad debt exp $8,700
(Being reversal is recorded)
Cash $8,700
To Accounts receivable $8,700
(being the recovery of the bad debt is recorded)