Answer and Explanation:
The journal entries are shown below:
1. Petty cash $140
To Cash $140
(Being the petty cash fund is established)
2. Postage expenses Dr $49
Merchandise inventory Dr $10
Delivery expenses $12
Miscellaneous expenses $38
To Petty cash A/c $109
(Being the expenses are recorded)
3. Petty cash $50 ($190 - $140)
To Cash $50
(Being the increase of the petty cash fund is recorded)
Only these entries are recorded