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Passwords for a certain computer consist of 5 symbols typed on a computer keyboard. Each password consists of one @ symbol, two # symbols, and two $ symbols, typed in any order. For example, @#$$# and $#$#@ are two different passwords for the computer. What is the total number of different passwords for the computer?
If the ones digit of $$7^{n}$$ is 9, which of the following could be the value of $$n$$?

Indicate all such values.

Quantity A

The number of tenths equal to 1.4

Quantity B

The number of hundredths equal to 1.3


Sam, Jan, and Kate all bought the same style of jacket. Jan paid 17 percent more for the jacket than Sam paid, and Kate paid 12 percent more for the jacket than Jan paid. The amount that Kate paid was what percent greater than the amount that Sam paid?

Give your answer to the nearest whole percent.
$$p$$, $$s$$, and $$t$$ are probabilities and $$0 \lt p \lt s \lt t$$.

Quantity A

$$p+st$$

Quantity B

$$s(p+t)$$


$$d$$ is a integer greater than $$1$$.

Quantity A

$$(d^{2})!$$

Quantity B

$$(d!)^{2}$$


What is the tens digit of $$\frac{39!}{29!}$$?
What is the probability of selecting two socks of the same color when selecting two socks out of 5 pairs of different colors of socks (each pair of socks have the same color)?
Give your answer as a fraction.
In 1998, how many of the imported towels were not imported from China?
If the average (arithmetic mean) number of towels imported from China per month was the same for the last 3 months of 2000 as it was for the first 9 months of 2000, approximately how many million dozen towels were imported from China during the 12 months of 2000?
In 1999, the ratio of the number of towels imported from China to the total number of towels imported from countries other than China was closest to which of the following?


The circle in the xy-plane shown has radius 5 and center O. Line l has a slope of $$\frac{1}{2}$$ and passes through the center of the circle. P is the point in the first quadrant at which l intersects the circle. Which of the following represents the coordinates of point P?
For each value $$x$$ in a list of values with mean $$m$$, the absolute deviation of $$x$$ from the mean is defined as $$|x-m|$$.

A certain online course is offered once a month at a university. The number of people who register for the course each month is at least $$5$$ and at most $$30$$. For the past $$6$$ months, the mean number of people who registered for the course per month was $$20$$. For the numbers of people who registered for the course monthly for the past $$6$$ months, which of the following values could be the sum of the absolute deviations from the mean?

Indicate all such values.
$$3 \lt x^{2} \lt 27$$

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

Quantity A

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

Quantity B

$$-40$$


Quantity A

The number of odd integers between $$\sqrt{12}$$ and $$12^{2}$$

Quantity B

70


In the four quarters of 2013, denoted by $$Q_1$$, $$Q_2$$, $$Q_3$$ and $$Q_4$$, Company C hired the same number of employees in $$Q_2$$ as in $$Q_1$$ and twice as many employees in $$Q_3$$ as in $$Q_2$$. The number of employees hired by the company in $$Q_4$$ was greater than the number of hired in $$Q_3$$; however, the number hired in $$Q_4$$ was also less than 3 times the number hired in $$Q_3$$. All of the employees were hired only once. If an employee is to be selected at random from all the employees hired during the four quarters, which of the following values could be the probability that the employee will be one who was hired in $$Q_4$$?

Indicate all such values.
Last year the value of one share of a certain stock increased by 10 percent from January to June, and the value of one share of the stock increased by 50 percent from January to December. What was the percent increase in the value of one share of the stock from June to December of last year?

Give your answer to the nearest whole percent.

_____%
The total revenue that firm P receives from the sale of a particular item is determined by multiplying the number of the items it sells by the price of the item. If the price of the item is to be decreased by 20 percent, by what percent must the number of the items sold increase to keep the total revenue unchanged?
$$(3.8 \times 6^{25}) — (0.24 \times 6^{26})$$ =
$$(2.82 \times 10^{-51} - 3.96 \times 10^{-49})$$=

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