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The mean of 7 numbers is 42. What is the sum of the seven numbers?
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If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?
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The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side
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The mean of 7 numbers is 42. What is the sum of the seven numbers?...
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