GRE
The remainder when 2n is divided by 10
$$6$$
$$x$$
$$0$$
The number of even integers n such that $$|n-30| \lt 6$$
$$5$$
$$PR$$
$$2(ST)+RS$$
$$\frac{AB}{AC}$$
$$2\sqrt{2}$$
The least possible number of right angles of a quadrilateral
$$1$$
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