Answer:
The journal records to record the transactions are:
July 1, purchased merchandise on account, terms 1/10, n/30
Dr Merchandise inventory 34,105
Cr Accounts payable 33,000
Cr Cash 1,105 (freight costs paid in cash)
July 3, damaged goods are returned
Dr Accounts payable 3,300
Cr Merchandise inventory 3,300
July 10, invoice is paid within discount period
Dr Accounts payable 29,700
Cr Cash 29,403
Cr Purchase discounts 297
The 1% discount is applied only to the merchandise invoice and it must be recorded as a contra expense account (purchase discounts) with a credit balance because it reduces COGS.