GRE
The number of integers in S that are multiples of 7, but not of 6
12
$$z$$
$$y+90$$
P
0
The area of triangular region ABG
$$\frac{1}{4}$$ of the area of triangular region ACE
$$t+9$$
$$m+13$$
$$2y$$
$$r+s$$
$$0$$
25000 +道题目
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