How essential is four years of high school math?

[ucbalumnus]

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@Catria

And how much calculus is required to do marketing, single-variable or multi-variable calculus?

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<p>One semester of calculus for business majors (easier than regular calculus for math, physics, and engineering majors) is required for the business major (including marketing) at CSULB, the school the OP’s son wants to go to.</p>