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Mathematics, 29.04.2021 19:20 bestdiva2

Some people use a rule to see how many hours a child should sleep at night subtract the child's age in years from 30 then divide the result by 2 tony is 6 years old according to the formula how many hours should he sleep for?

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Some people use a rule to see how many hours a child should sleep at night subtract the child's age...
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