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Q25: C(7, 7)<br>A) 1,260<br>B) 1<br>C) 0.5<br>D) 5,040
Q48: A certain mathematics test consists of 20
Q50: <span class="ql-formula" data-value="x ^ { 2 }
Q53: F(x) = -5<br>A) - 15<br>B) 5<br>C) 0<br>D)
Q98: A closed box with a square
Q113: <span class="ql-formula" data-value="\sum _ { k =
Q119: <span class="ql-formula" data-value="\lim _ { x \rightarrow
Q173: The coefficient of <span class="ql-formula"
Q184: The one-day temperatures for 12 world
Q222: <span class="ql-formula" data-value="\left\{ \begin{array} { c }