What is the simplified form of the mixed number 3 1/4, when factored as the product of its prime factors?
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What is the surface area of a cone with a radius of 5 units and a slant height of 10 units? (Use π as 3.14)
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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?