Under the U.S. Constitution, the powers of the federal government include:
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Coin money - The federal government has the exclusive authority to produce and regulate currency.
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Make treaties with foreign nations - The Constitution grants the federal government the power to enter into treaties, with the requirement that such treaties must be ratified by the Senate.
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Maintain army and navy - The Constitution gives Congress the power to raise and support armed forces.
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Raise taxes - The federal government has the power to levy taxes to fund its operations.
The other options (establish public schools and regulate businesses in a state) are generally powers reserved to the states. Public education is primarily a state responsibility, and while the federal government can regulate some aspects of interstate commerce (which can impact businesses), it does not have the authority to regulate intrastate businesses unless it has a significant effect on interstate commerce.
So the applicable powers from your list are:
- Coin money
- Make treaties with foreign nations
- Maintain army and navy
- Raise taxes