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2026年3月国际A卷 · 第 1 题

2026年3月国际A卷 · 原库模块 3 · Q1 原库参考解析

A cable company charges new customers a onetime installation fee and a monthly service fee for cable service. The equation \( y=50x+120 \) gives the total amount y, in dollars, the cable company charges new customers for x months of cable service. What is the amount, in dollars, of the onetime installation fee the cable company charges new customers?
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