Answer:
Karen's bank change in balance sheet would be:
Asset:
Change in reserves: $78
Change in loans: $522
Liabilities
Change in deposits: $600
Explanation:
Karen deposits $600 into her checking account at the bank means the amount of deposits held by Karen bank would increase by $600. This increase automatically means the fund is available for lending. However, there is a regulatory reserve requirement of 13%, which translates to $78. This amount would not be lent to customer but rather kept as reserve with the Fed. Therefore, the available fund for lending (loans) is $522.