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Q71: <span class="ql-formula" data-value="- 90"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo>−</mo><mn>90</mn></mrow><annotation
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Q122: The greatest common factor of two relatively
Q139: If s varies directly as t2, and
Q179: 6 ≡ 13 (mod 2)
Q221: <span class="ql-formula" data-value="- \frac { 5 }
Q228: In order for a chemical reaction
Q299: <span class="ql-formula" data-value="\frac { 4 } {
Q388: About how many students would you expect