GRE
$$(\frac{1}{2})^{-1}$$
$$(-2)^{-1}$$
The median of Ann, Bob, and Celia's earnings
The average(arithmetic mean) of Ann, Bob, and Celia 's earnings
x
-2
The perimeter of △ABO
The length of arc BCD
The least positive integer by which 4,500 can be multiplied so that the resulting product is the cube of an integer.
6
3x+4y
8
The coordinate of Z
2.3
$$\frac{x+y}{y}$$
$$\frac{x^{2}-y^{2}}{xy-y^{2}}$$
The remainder when 754,975,376 is divided by 4
The remainder when 701,864,294 is divided by 4
(2▽1)▽k
k▽(4▽1)
The standard deviation of the numbers in list M
r
y
n
39
The number of minutes he took to bicycle the last 8 miles
x-32
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