You know that her beginning balance was $623.65. Then, if she deposited $225, that money must be added to the beginning balance. After that deposit, she had:
After that, she wrote checks for $168.75 and she also paid $3.50 for the bank charge. Therefore, you need to subtract these amounts of money from the sum found before, in order to calculate Evie's ending balance (in dollars) for the month.
Then, you get that this is:
The answer is: Option d.