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In a school, the ratio of boys to girls is 2:3. 20% of the boys are left handed 70% of the girls are right handed. What percentage of all the students are left handed?
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Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?
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One integer is 5 more than another. their product is 104. find the integers
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Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b
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