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Mathematics, 15.12.2019 09:31 hey840
Show a way to count from 170 to 410 using tens and hundreds. circle at least 1 benchmark number.
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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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Mathematics, 21.06.2019 23:00
The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?
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Show a way to count from 170 to 410 using tens and hundreds. circle at least 1 benchmark number....
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