Предмет: Алгебра, автор: aliyevazeyneb003

помогите пожалуйста срочно! ​

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Автор ответа: vloganima
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Ответ: d) 20

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The planet Earth is only a tiny part of the universe, but it's the only place where human beings can live.
Today, our planet is in serious danger. Acid rains, global warming,
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I would advise everyone to think about this problem.
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