GRE
IxI
y
|1-x|
1
$$|x|-|y|$$
$$0$$
The greatest possible value of $$\frac{5}{x-y}, where 6 ≤ x ≤ 7 and -1 ≤ y ≤ 5$$
5
The percent of the employees at Company X yesterday who did not leave for the day before 6 P.M
20%
RS
TU
The list price of the belt
The list price of the scarf
2x+6
15
25000 +道题目
6本备考书籍