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In the rectangular coordinate system, the distance between the points (a, 2) and (b, 6) is 5.

Quantity A

|a-b|

Quantity B

3


A computer identification code on a certain machine consists of 2 letters from an alphabet of 26 letters, followed by 2 digits from the digits 0 to 9. The two digits must be different. How many identification codes are possible?
From a class of 8 students, of which 5 students are female, a president and a vice president are to be chosen at random. If a student cannot be both the president and the vice president, what is the probability that the president and the vice president will both be female?
Give your answer as a fraction.
When an even integer k is rounded to the nearest 10, the result is 530. What is the greatest possible value of k?
Each of the offices on the second floor of a certain building has a floor area of either 250 or 300 square feet. The total space of these offices is 5,750 square feet.

Quantity A

The number of these offices with floor areas of 250 square feet

Quantity B

The number of these offices with floor areas of 300 square feet


x and y are integers, 0 < x < y, and $$x^{2}+y^{2} $$ is even. Which of the following integers must be even?

Indicate all that are true.
a = $$3^{11}$$+$$3^{16}$$+$$3^{19}$$+$$3^{23}$$)?

What is the units digit of a?

Quantity A

$$(2m+1)^{2}$$

Quantity B

$$(2(m+1))^{2}$$


x is a negative integer

Quantity A

$$(2^x)^2$$

Quantity B

$$(x^2)^x$$



PQ=QR=QS

Quantity A

PS

Quantity B

RS


Sequence $$S$$: $$a_{1}, a_{2}, a_{3},......,a_{n}$$........

In sequence $$S$$, $$a_{1}$$ is an integer and $$a_{n}=2a_{n-1}$$ for all integers n greater than 1. If no term of sequence S is a multiple of 100, which of the following could be the value of $$a_{1}$$?

Indicate all such values.
z is a positive integer. When 17 is divided by z, the remainder is 2.

Quantity A

z

Quantity B

4


k is a positive integer

Quantity A

The remainder when k is divided by 7

Quantity B

The remainder when 2k is divided by 7


k and n are consecutive positive odd integers.

Quantity A

The least common multiple of k and n

Quantity B

kn


The reduced price of a certain television was x percent less than the television's original price. The ratio of the reduced price of the television to the original price was 5 to 6.

Quantity A

x

Quantity B

20


$$k \gt m$$

Quantity A

|$$m$$| - |-$$k$$|

Quantity B

|$$k$$| - |-$$m$$|


Today a certain machine is worth 20 percent less than it was worth a year ago, and it is worth x percent less than it was worth two years ago. A year ago the machine was worth 20 percent less than it was worth two years ago.

Quantity A

x

Quantity B

40


x+y ≠ 0

Quantity A

$$2(x+y)^{2}$$

Quantity B

$$(2x+2y)^{2}$$


Which of the following is equal to an integer raised to the third power?

Quantity A

$$\sqrt[3]{625}$$

Quantity B

$$5\sqrt{5}$$


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