Answer and Explanation:
The journal entries are as follows;
a. On Jan 1
No journal entry is required
b. On Feb 5
Contra asset Dr $1,320
To Sales revenue $1,320
(being sales revenue is recorded)
Cost of goods sold Dr $670
To Inventory $670
(being cost of goods sold is recorded)
c. On Feb 25
Cash $3,300
Contra asset Dr $1,320
To Sales revenue $1,980
(being sales revenue is recorded)
Cost of goods sold Dr $300
To Inventory $300
(being cost of goods sold is recorded)