Richard’s account balance at the end of the week is $ 132.45
<h3>What is Account Balance ?</h3>
The amount of money in a person's bank account is called the account balance of that person
It is given that 
Account balance of Richard’s at the beginning of the week = $57.34
Deposits in the week  : $ 163.75
Expenses in the week : Groceries + Credit card bill + Gas
Total Expenses in the week = 25.37 + 50 + 13.27
                                                = $ 88.64
The Richard’s account balance at the end of the week = Account Balance +Total Deposits - Total Withdrawals 
 = 57.34 + 163.75 - 88.64
Therefore , Richard’s account balance at the end of the week is $ 132.45.
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