Mathematics, 06.09.2021 16:40, brianquinnholop6049c

$\frac{1}{3}$ of a class are absent. $\frac{1}{4}$ of those present do not have their calculators. 12 do have their calculators. How many students in the class?

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of a class are absent. of those present do not have their calculators. 12 do have their calculator...