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Q83: <span class="ql-formula" data-value="\left\{ \begin{array} { l }
Q100: <span class="ql-formula" data-value="128 x ^ { 3
Q102: 0.4<0.2 x-0.9<1.2<br>A) (-2.5,1.5) <br>B) [6.5,10.5]
Q104: One leg of a right triangle is
Q164: <span class="ql-formula" data-value="-9 x-y=-8"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo>−</mo><mn>9</mn><mi>x</mi><mo>−</mo><mi>y</mi><mo>=</mo><mo>−</mo><mn>8</mn></mrow><annotation
Q167: 5(x-1)+x=6(x+1)-11 <br>A) <span class="ql-formula"
Q171: <span class="ql-formula" data-value="( - 7 , -
Q177: 2 x-1-9 x-8=5 x-12 x-12<br>A)
Q202: <span class="ql-formula" data-value="- 2 y + 3
Q206: Determine whether the number is a