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Q56: Three female students and two male students
Q99: <span class="ql-formula" data-value="\begin{array}{r}2 x+3 y \geq 6
Q152: <span class="ql-formula" data-value="a _ { n }
Q237: <span class="ql-formula" data-value="1 + \frac { 1
Q278: <span class="ql-formula" data-value="1.06 ^ { 3 }"><span
Q299: A bag contains 8 red marbles,
Q312: <span class="ql-formula" data-value="\frac { 1 } {
Q438: A grain dealer sold to one customer
Q440: Through <span class="ql-formula" data-value="( -
Q458: Give all solutions of the nonlinear