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The horizontal fraction bar was introduced by the Arabs.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Your heart beats over 36 million times a year.