GRE
|a|
|b|
$$\frac{2^{27}-2^{24}}{8^{27}-8^{26}}$$
$$2^{-54}$$
$$\frac{6k}{8k}$$
$$\frac{3w}{4w}$$
$$\frac{x^{3}}{9}$$
$$(\frac{x}{9})^{3}$$
n
29
The length of the fourth side of a quadrilateral if the length of each of the other three sides is 3
3
The greatest common factor of $$p^{2}qr$$ and $$qr^{2}s$$
$$qr$$
The area of the region enclosed by the pentagon shown
$$\frac{7}{2}S$$
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