Financial talk

total reserves= $200 billion transaction deposits= $800 bil cash held by public= $100 billion required reserve ratio= .20 are the banks fully utilizing their lending capacity? what would happen to the Money supply (900billion) initially if the public deposited $50 billion of their cash in their transaction accounts? what would the lending capacity of the banking system be after the 50 bil deposit? what would teh potential expansion of the money supply be if the banks fully utilized their lending capacity?