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
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