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2024年6月B卷 · 第 21 题

2024年6月B卷 · 原库模块 2 · Q21 原库参考解析

The cost of renting a power washer is $56 for the first day and $28 for each additional day. Which of the following functions gives the cost C(d), in dollars, of renting the power washer for d days, where d is a positive integer?
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