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The passage is primarily concerned with discussing
The total annual rainfall during year X in Nairobi was 29.9 inches. Approximately what percent of the total annual rainfall occurred during April?
If $$y=(x-2)(x-1)(x+1)$$, which of the following graphs indicates all of the values of $$x$$ for which $$y$$ is positive?
$$Y_1, Y_2, Y_3,...,Y_i,...$$

The sequence shown is defined by $$Y_1$$=5 and $$Y_{i+1}=\frac{1}{5}Y_i$$ for each positive integer.

Quantity A

$$Y_6$$

Quantity B

$$(25^{5})Y_{16}$$


If $$15 \leq r \leq 18$$ and $$30 \leq s \leq 36$$, what is the greatest possible value of the average (arithmetic mean) of $$\frac{1}{r}$$ and $$\frac{1}{s}$$?
If N is a positive integer, then the number of prime numbers between N+1 and N+6, inclusive, CANNOT be
Today is Willy and Jake's birthday. Willy is 6 years older than Jake. On their birthday 4 years from today, Willy's age will be twice Jake's age. What will Jake's age be on his birthday 4 years from today?


A 10-foot long board is parallel to level ground, and the fulcrum supporting it is at the board's midpoint, as shown in the figure above. If the board is tipped, with the fulcrum remaining at the board's midpoint, so that the board's left end just touches the ground, which of the following is closest to the number of feet that the right end of the board is above the ground?
The distance from the center of tree A to the center of tree B is 20 feet. The distance from the center of tree A to the center of tree C is 12 feet. The centers of the three trees are not, in a straight line. Which of the following values could be the distance, in feet, from the center of tree B to the center of tree C?

Indicate all such values,
The primary purpose of the passage is to
$$0 \lt s \lt t$$

Quantity A

$$\frac{s}{t}$$+0.4

Quantity B

$$\frac{5s+2t}{5t}$$


It can be inferred from the passage that the "positive effect" occurs because
Six identical marbles are to be distributed among 4 cups numbered 1 through 4 so that in the resulting distribution there will be at least one marble in each cup. How many different distributions are possible?
Computational psychologists, since they take the operation of a computer as a model, ____________ concepts from computer science to explain what the mind is and how it works.
How many of the 900 positive 3-digit integers have a units digit of 2 and are the square of an integer?
According to the passage, which of the following is true regarding the symbols of the Mesoamerican codex graphic system?


The top surface of a certain 1-inch-thick oak board is 8 inches wide and has an area of 960 square inches. What is the price of this board? (1 foot=12 inches)
The standard deviation of $$n$$ numbers $$x_{1}$$, $$x_{2}$$, $$x_{3}$$,......, $$x_{n}$$, with mean $$\overline{x}$$ is equal to $$\sqrt{\frac{s}{n}}$$, where $$S$$ is the sum of the squared differences $$(x_{i} - \overline{x})^{2}$$ for 1 ≤ i ≤ n.

For what value of $$x$$ is the standard deviation of the numbers $$6$$, $$14$$, $$16$$, and $$x$$ least?
A box contains 30 marbles of which 6 are red, 7 are blue, 8 are yellow, and the rest are green. Marbles are selected randomly from the box one at a time without replacement. The selection process stops as soon as 2 marbles of different colors have been selected. What is the greatest number of selections that might be needed in order to stop the process?


BC=DC

Quantity A

x

Quantity B

y


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