GRE
x
y
The range of the numbers in Q
40
The ratio of the area enclosed by C to the area enclosed by S
1
The number of points in S that are a distance of 2 units from the point (7, 5
4
$$(x-y)^{2}$$
3
a+b
10
$$(a+\frac{b}{4})+(\frac{a}{4}+b)$$
6
k
$$\frac{1}{4}$$
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