Which of the following expressions are equivalent to –4 +(4+5)?
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The two-way frequency table below shows data on playing a sport and playing a musical instrument for students in a class.

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

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