Answer and Explanation:
The journal entries are shown below;
a. Petty Cash $800
To Cash $800
(Being the establishment of the petty cash fund is recorded)
b. Office Supplies $306
Miscellaneous Selling Expense $127
Miscellaneous Administrative Expense $79
Cash Short and Over $ 16
To Cash ($800 - $272)$528
(Being the replenish of the petty cash fund is recorded)