Ralph is a electrician he charges an initial fee of 24$ , plus 24 per hour. if ralph earned 144$ on the job , how long did the job take.

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Prove that quadrilateral is a rhombus.

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.