What is the average weight (in pounds) of a sample of 20 students, given their weights: 135, 140, 145, 150, 155, 160, 165, 170, 175, 180, 185, 190, 195, 200, 205, 210, 215, 220, 225, and 230?
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Math question: Solve the system of inequalities by graphing: x + y ≤ 6 2x - y > 4
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What is the length of the side opposite a 40° angle in a triangle with a known adjacent side of 5 cm and a hypotenuse of 8 cm?