GRE
$$\frac{n+2}{n+1}$$ - $$\frac{n+1}{n}$$
0
|$$m$$| - |-$$k$$|
|$$k$$| - |-$$m$$|
Of all the acres planted with corn in region A and region B combined, the percent of acres that are planted with the hybrid seed
14%
(x+2)x
(x+2)(x-2)
The area of square ABCD
The area of rectangle AEFG
$$s-r$$
$$t-s$$
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