GRE
The average (arithmetic mean) of $$x$$, $$y$$, and $$z$$
$$\frac{z}{2}$$
In the xy-plane, the x-intercept of the line determined by the equation y=x+1
0
y-x
10
The range of the numbers a, b, c, d, e, and f
The range of the numbers $$a^{2}$$, $$b^{2}$$, $$c^{2}$$, $$d^{2}$$, $$e^{2}$$ and $$f^{2}$$
25000 +道题目
236本备考书籍