GRE
The perimeter, in inches of the figure above
300
$$(a+b)^{2}$$
$$(a-b)^{2}$$
$$\frac{R}{r}$$
1.5
The product of the integers from -7 to 3
The product of the integers from -3 to 7
OX
OY
xy
1
Her average speed, in miles per hour
45
ab
a+b
b
60
The volume of a cube whose edges are x
The volume of a rectangular solid whose dimensions are (x-1), x and (x+1)
25000 +道题目
245本备考书籍