GRE
$$x$$ percent of $$x$$
$$y$$ percent of $$y$$
The area of triangular region ABG
$$\frac{1}{4}$$ of the area of triangular region ACE
The number of real roots of $$2x- \frac{4}{7}$$=0
The number of real roots of $$2x^2 + \frac{4}{7}$$=0
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