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Q3: <span class="ql-formula" data-value="\left\{ \begin{array} { l }
Q5: 30 - 10x = 0 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6730/.jpg"
Q21: <span class="ql-formula" data-value="\left\{ \begin{array} { l }
Q26: 3(w + 2) = 4(w - 1);
Q56: <span class="ql-formula" data-value="x + 9 , \text
Q74: Six times a number, decreased by fourteen<br>A)
Q87: Estimate the maximum revenue during the period
Q87: <span class="ql-formula" data-value="\left[ \begin{array} { r r
Q100: <span class="ql-formula" data-value="\frac { 7 } {
Q161: <span class="ql-formula" data-value="A = \left[ \begin{array} {