GRE
The probability of drawing a red marble after an additional blue marble has been placed in the bag
The probability of drawing a red marble after one of the red marbles has been removed from the bag
$$w(2x+2y+2z+1)$$
$$2w(x+y+z)$$
$$b-a$$
$$b+a$$
$$x$$
$$\frac{3}{2}$$
The slope of a line that is perpendicular to line p
$$1$$
$$x+y$$
$$200$$
$$RS$$
$$ST$$
The length of arc RST
$$15π$$
The circumference of the smaller circle
The length of arc ABC
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