GRE

125n

215(n-1)

The area of an isosceles triangle that has one right angle and two sides of length 2

The area of an equilateral triangle that has sides of length 2

x

y

The number of integers from 1 to 300 that are divisible by both 5 and 9

6

The time taken by the car to travel the d miles at r miles per hour

$$\frac{d}{s}$$ hours

-15

$$\sqrt{R}$$

$$\frac{R}{10}$$

The median of r, s, and t

s

25000 +道题目

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