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suppose the variable x represents students, y represents courses, and T(x, y) means "x is taking y."
-Every course is being taken by at least one student.
Bonds
Long-term instruments of debt issued by corporations or governments, promising to pay back the principal along with interest at a future date.
Equity Securities
Financial instruments that represent an ownership interest in a company, such as stocks.
Money-Market Funds
Investment funds that invest in short-term debt securities with the goal of providing high liquidity and low risk.
Treasury Bills
Short-term government securities with maturities of one year or less, used as a tool for managing short-term liquidity.
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