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2024年6月北美A卷 · 第 20 题

2024年6月北美A卷 · 原库模块 2 · Q20 知序中文精讲

The percent increase in mass of a certain red kangaroo from 80 days old to 160 days old was 676%. If this red kangaroo's mass was k grams at 80 days old, which expression represents its mass, in grams, at 160 days old?
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