PA, FE: Unit 1,2 Review

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What is the result of Maria's transactions if she starts with $128, spends $30, loans $20, and receives a $100 paycheck?

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$178

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9

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=

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11

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Define absolute value.

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The absolute value of a number is its distance from zero on the number line, regardless of direction.

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What is the order of operations in mathematics?

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The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

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What does it mean to simplify an expression?

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To simplify an expression means to reduce it to its simplest form, making it easier to understand or calculate.

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2

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