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ZX-78A253DA81Bluebook试题7 · 第 13 题
Bluebook试题7 · 原库模块 2 · Q13 原库参考解析
\( f\left(x\right)=45x+600 \)
The function \( f \) gives the monthly fee \( f\left(x\right) \), in dollars, a facility charges to keep x crates in storage. What is the monthly fee, in dollars, the facility charges to keep 50 crates in storage?
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