0 < a < b < 1

0

#### Quantity B

2(a - b)

Rachel, David, and Kristen decide to pool their money to buy a video game system. David contributes 4 dollars more than twice what Kristen does, and Kristen contributes 3 dollars less than Rachel does. If Rachel contributes r dollars, then, in terms of r, how much does David contribute?
If$x\neq0$adn y=$\frac{x+1}{x}-1$,what is $\frac{1}{y}$?

#### Quantity A

$-\frac{x-3}{4}$

#### Quantity B

y x + y - 1

x - y + 1

x>1

#### Quantity A

$5^{x}+1$

#### Quantity B

$6^{x}$

At a crafts supply store, the price of a type of decorative string is c cents per foot. At this rate, what would be the price, in dollars, of y yards of this string?
$x^{2}=|y|$

|x|

y

#### Quantity A

$\frac{a+b+c}{5}$

#### Quantity B

$\frac{1}{5ab}+\frac{c}{5}$

#### Quantity B

The length of the rectangle Two children named Peter and Wanda are playing a number game. If Peters number z is 200 percent of Wandas number, what is 20 percent of Wanda`s number, in terms of z?
What is the area of a circle whose circumference is x?
A rectangle has length 2x and width x. If each diagonal of the rectangle has length d, what is the area of the rectangle, in terms of d?
In the figure above, which one of the following is true? 130 < x < 150

#### Quantity A

The greatest odd factor of x

#### Quantity B

The greatest even factor of x

358-2(x + y)

#### Quantity B

180-(x + y) 25000 +道题目

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