Answer:
The rule of four is a Supreme Court of the United States practice that permits four of the nine justices to grant a writ of certiorari. This is done specifically to prevent a majority of the Court from controlling the Court's docket.
Explanation:
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Banks are very important to the US economy because they control the inflow and outflow of money that comes in and out of the country. Banks use these money for development of the country and without them, the economy will have a hard time monitoring the country's cash supply
