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Mathematics, 21.06.2019 21:00
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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Mathematics, 21.06.2019 22:30
Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.
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Mathematics, 21.06.2019 23:40
Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder
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Geography, 24.07.2019 07:10
Geography, 24.07.2019 07:10
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Geography, 24.07.2019 07:10
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Geography, 24.07.2019 07:10