A university will spend at most $4,500 to buy monitors and keyboards for a computer lab. Each monitor will cost $250, and each keyboard will cost $50.



Which inequality represents all possible combinations of x, the number of monitors, and y, the number of keyboards, the university can buy for the computer lab?

fifty x plus two hundred fifty y, symbol, four thousand five hundred

two hundred fifty X, plus fifty Y, symbol, four thousand five hundred

two hundred fifty X, plus fifty Y, symbol, four thousand five hundred.

fifty X plus two hundred fifty Y, symbol, four thousand five hundred

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