Answer:
The Journal entries are as follows:
(1) Cash A/c           Dr. $200
Account receivable A/c Dr. Â $100
Cost of goods sold A/c Dr. $125
To sales revenue                $300
To Inventory                    $125
(To record the sales revenue)
(2) Salaries and wages expenses A/c  Dr. $90
To Cash                                 $34         Â
To salaries and wages payable              $56
(To record the salaries and wages expense of $90)