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Q4: <span class="ql-formula" data-value="\begin{array} { l } 8
Q8: <span class="ql-formula" data-value="( 3,4 ) ( -
Q14: A salesman sold <span class="ql-formula"
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Q57: <span class="ql-formula" data-value="3 x - 5 y
Q73: <span class="ql-formula" data-value="(8,2)(-3,3)"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mn>8</mn><mo
Q86: <span class="ql-formula" data-value="\frac { k ^ {
Q102: <span class="ql-formula" data-value="x ^ { 3 }
Q104: <span class="ql-formula" data-value="\frac { 3 x +
Q110: <span class="ql-formula" data-value="\frac { x ^ {