Answer and Explanation:
Journal entries
May 24
Dr Account Receivable Old Town Cafe $18,450
Cr Sales $18,450
To record sales on merchandise on account
May 24,
Dr Cost of merchandise sold $11,000
Cr Merchandise inventory $11,000
To record the cost of goods sold
Sept 30
Dr Cash $6,000
Dr Allowance for doubtful accounts $12,450
Cr Account Receivable Old Town Cafe $18,450
To record cash collection written off uncollectible account receivable
Written off uncollectible account receivable
$12,450($18,450-$6,000)