The following events related to a company's start up of a petty cash fund, occurred in July and August of 2021 : a) Leviathan Inc. established a $180 petty cash fund on July 1 . (2 entries) b) At the end of the month, the petty cash box contained the following: The petty cash was replenished on July 31. (2 entries) c) On August 1 the size of the petty cash fund was increased by $20. (2 entries) Record the journal entries for July 1, July 31 , and August 1; assuming Leviathan makes use of a voucher system. (6 journal entries are required.)