exam Maths Puzzle Numerical Ability

Here is my problem: A friend tells you that -x is less than x for all values of x. Explain why you agree or disagree. I have tried this problem and I have no idea how to do it.

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exam Other Question

A survey of college sophomores showed that 5/6 of the males were taking a mathematics class and � of the females were taking a mathematics class. One-third of the males were enroll Does the inequality y < 3x - 1 represent a function Explain your answer.