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 Â
Cash Short and Over $ 16
     To Cash ($800 - $272)$528
(Being the replenish  of the petty cash fund is recorded)