[Solved] The names of the seven days of the week are derived from the names of the members of the solar system that are visible to the naked eye. Reserve Ratio: The fraction of deposits that banks are required to keep on hand as reserves, either in their vaults or with the central bank, to ensure liquidity. Goldsmith's Receipts: Goldsmith's Receipts were historically issued by goldsmiths in the form of promissory notes against the gold deposited with them, leading to the development of banking. NOW Accounts: Interest-earning banking accounts that permit writing checks against the deposited funds. Interest-Bearing: Pertaining to financial instruments or accounts that generate interest income over time for the holder, such as bonds or savings accounts.