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Set $$P$$ consists of all the integers from $$1$$ to $$100$$, inclusive. Which of the following sets contains the greatest number of integers?
If $$x$$ and $$y$$ are positive integers and $$\frac{(8)(7)(6)(5)(4)(3)}{(2^{x})(3^{y})}$$is an integer, what is the greatest possible value of $$xy$$?
The stock prices of three companies are $$x$$, $$2x$$ and $$x+2$$, respectively and $$x \gt 2$$. Which of the following statement alone can be sufficient to determine the value of $$x$$?
Indicate all such statements.
In a company, $$\frac{1}{3}$$ of employees are female, $$\frac{1}{2}$$ of employees have college degrees.

Quantity A

The percentage of female employees who also have college degrees among all employees

Quantity B

$$\frac{1}{6}$$


If both $$a$$ and $$b$$ are positive odd integers, which of the following could be the units digit of the sum $$ab+1$$?

Indicate all such numbers.
How many integer values of n satisfy the inequality | 3-n | ≤ 4 ?
If $$\sqrt{108}$$ =$$a\sqrt{b}$$, where $$a$$ and $$b$$ are both positive integers, which of the following could be the value of a+b?

Indicate all such numbers.
The length of the three sides of a triangle is 9, 12 and 16.

Quantity A

The angle opposite to the longest side of the triangle

Quantity B

90°


All of the 80 science students at a certain school are enrolled in at least one of three science courses: biology, chemistry, and physics. There are 60 students enrolled in biology, 50 students enrolled in chemistry, and 35 students enrolled in physics. None of the students are enrolled in all three courses. Which of the following could be the number of students enrolled in both chemistry and physics?
Indicate all such numbers.
For what value of $$a$$ does the standard deviation of the numbers $$a$$, 1, 7 have the least value?


The figure above shows a normal distribution with mean $$m$$ and standard deviation $$d$$, including approximate percents of the distribution corresponding to the six regions shown.

A survey of 5,500 book readers found that the number of books read per year was approximately normally distributed with mean 19.0 and standard deviation 2.0. Which of the following is the best description of the numbers of books read per year by the 880 book readers who read the most books?
C and M have to take pictures together with five other people. C has to stand in one of the three positions in the middle, M has to stand besides C, while the other five people can stand as they want. In how many ways can they stand in total?
$$3 \lt x^{2} \lt 27$$

$$6 \lt y^{2} \lt 69$$

Quantity A

The least possible value of the product $$xy$$, where $$x$$ and $$y$$ are integers satisfying the inequalities

Quantity B

$$-40$$


Three variables, x, y, and z, in a scientific experiment are related by the equation $$z=x^{2}y$$. In the experiment, if the value of x decreases by 40 percent while the value of y increases by 50 percent, what is the percent decrease in the value of z?
Paul's family put $$m$$ dollars in a new savings account on May 2, 1990, and put the same number of dollars in the account on May 2, 1991, and again on May 2, 1992. If the annual interest rate on this account was 4 percent compounded annually and there were no other deposits to the account or withdrawals from the account, which of the following represents the total number of dollars in the account on May 2, 1993, just after interest had been compounded for the third time, in terms of $$m$$?
$$x((75+y)+(15-y))=900$$

Quantity A

$$xy$$

Quantity B

$$10$$


xy = 2

If the average of x and y is 3, then $$x^{2}$$ + $$y^{2}$$ = ?
$$(2.82 \times 10^{-51} - 3.96 \times 10^{-49})$$=
A company has assets worth $150,000 and liabilities worth $70,000, giving it an asset-to-liability ratio of approximately 2.1. The company will borrow x dollars, and the amount borrowed will be added to both the assets and the liabilities. If the asset-to-liability ratio is to be greater than 1.2 after the money is borrowed, which of the following could be the value of x?

Indicate all such values.
An apple falls straight to the ground from a tree branch 8 meters above the ground. The apple`s height above the ground, $$t$$ seconds after it starts falling, is $$H$$ meters, where $$H=8-4.9t^{2}$$ and $$t$$ ≥ 0. How many seconds after the apple starts falling does it hit the ground?

Give your answer to the nearest 0.1 second.

_____seconds

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