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Carbon-11 has a half-life of about 20 minutes if we start with 200 grams how much will be left after 3 hours?
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Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together
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Carbon-11 has a half-life of about 20 minutes if we start with 200 grams how much will be left after...
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