2. A district supervisor of a certain school surveyed 28 randomly selected teachers and found that they work an average of 42.6 hours a week and the standard deviation was 3.75 hours.

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A: Let's find.

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A:

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A: What is 1 plus 1 equals ?

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A:

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A:

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A:

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A: We have to find  738 + 4 =  Since ,  738 = {(7 × 8) + 3)}8

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A: Let x be the number.

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A:

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A: we have to find grade..