Answer:
There is no space here to present the journal records as a general journal, but the basic idea is the same. All these transactions should be recorded in the same way, the difference is the format only.
January 8, invoice 1885 paid to Song, Inc.
Dr Accounts payable 2,500
Cr Cash 2,450
Cr Purchase discounts 50
January 10, purchased merchandise from Song, Inc. invoice 1920, terms 2/10, n/30
Dr Merchandise inventory 1,250
Cr Accounts payable 1,250
January 15, received credit memorandum for damaged merchandise
Dr Accounts payable 100
Cr Merchandise inventory 100
January 19, invoice 1920 paid to Song, Inc.
Dr Accounts payable 1,150
Cr Cash 1,127
Cr Purchase discounts 23
January 30, purchased merchandise from Song, Inc. invoice 1950, terms 2/10, n/30
Dr Merchandise inventory 2,700
Cr Accounts payable 2,700