Solution :
Date Account  Debit  Credit
Sept 9 Petty cash $ 350
 Cash $ 350
Sept 30 merchandise purchased $ 42
 postage expenses $ 50
 miscellaneous expenses $ 102
 Cash shortage $ 12
 Cash (350-42-50-102)=156-144=12 $ 206
Oct 1 Petty cash 45
 Cash (395-350) $ 45