GRE
$$x^2+y^2$$
$$1$$
x
y
The average (arithmetic mean) of $$a^2$$, $$b^2$$ and $$c^2$$
The median of $$a^2$$, $$b^2$$ and $$c^2$$
The area of a triangle with a perimeter of 40 and a side whose length is 12
72
$$y$$
5
The arithmetic mean number of days per month in 1991
The median number of days per month in 1991
$$The number of red flags in the line$$
$$\frac{n}{2}$$
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