GRE
The least positive prime factor of $$n$$
$$5$$
$$x$$
$$16$$
$$|x|$$
$$\frac{1}{\frac{x}{y}-1}$$
$$\frac{x}{y}-1$$
$$\frac{1}{x}$$
$$\frac{1}{y}$$
$$k$$
$$30$$
$$\frac{1}{1+3^x}$$
$$\frac{1}{1+5^x}$$
$$r^2$$
The area of triangular region $$ABC$$
The median age of the 10 people
20 years
$$ad$$
$$bc$$
$$(x^3)^7$$
$$(x^3)(x^7)$$
The units digit of the integer $$x$$
$$1$$
The area of the circular region
$$4π$$
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