For each of the following monetary policies, calculate the change in money supply.1. The Fed purchases $500 worth of bonds from banks and the required reserve ratio is 10%.2. The Fed sells $800 worth of bonds to banks and the required reserve ratio is 20%.3. The Fed purchases $3000 worth of bonds from banks and the required reserve ratio is 50%.4. The Fed makes $500 discount loans to banks. The required reserve ratio is 10%.5. The Fed lowers the required reserve ratio from 10% to 2%. The amount of bank reserves is $5 million.