GRE
$$x$$
$$-1.999$$
The number of 1-foot by 1-foot square tiles used
The number of 1-foot by 2-foot rectangular tiles used
The average (arithmetic mean) number of defective light bulbs per box for the 75 boxes
The median number of defective light bulbs per box for the 75 boxes
$$r$$
$$7$$
The median of $$a, b, c, d$$, and $$e$$
$$\frac{a+b+c+d+e}{5}$$
$$\frac{n+n^2}{n^3+n^4}$$
$$\frac{1}{n^2}$$
The length of arc $$MPN$$
The length of arc $$MQN$$
\frac{1}{1+3^x}
\frac{1}{1+5^x}
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