GRE
a
b
The area of a rectangular region that has a perimeter of 20 inches
20 square inches
|x|
$$x^{2}$$
The least possible value of $$\frac{3x-4}{y+7}$$
$$\frac{2}{5}$$
x
y
x-2
6
The dollar reduction in the price of the jacket
The dollar reduction in the price of the pair of slacks
The product of the positive prime factors of 30
The sum of the positive prime factors of 30
x+y
1
25000 +道题目
198本备考书籍