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2023年12月C卷 · 第 2 题

2023年12月C卷 · 原库模块 1 · Q2 原库参考解析

Harper deposited a fixed amount into her bank account each month. The function f(t)= 250+30t gives the amount, in dollars, in Harper's bank account after t monthly deposits. What is the best interpretation of 30 in this context?
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