Help ASAP, first one will be the brianlistt
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The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years
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Given the net of the rectangular prism, what is its surface area?
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Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old
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