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If $$f(x) = x^2 +5$$ for all positive integers $$x$$, which of the following must be true for each positive integer $$x$$?
<$$x$$, $$y$$>=$$(-1)^{x+y}$$ for all integers $$x$$ and $$y$$.

Quantity A

<2a, 4b>

Quantity B

<4a, 2b+1>


n > 4

Quantity A

The sum of the first n positive prime numbers

Quantity B

The sum of the first n positive integers


$$k$$ is a positive integer, and $$n=15k$$.

Quantity A

The number of different prime factors of $$n$$

Quantity B

4


A certain list consists of 25 different positive integers, where each of the integers is a multiple of the positive integer m, The greatest integer in the list is 250.

Quantity A

m

Quantity B

5


Integer x is a multiple of 26. R is the remainder when 15x is divided by 6.

Quantity A

R

Quantity B

0


$$n$$ is a positive integer.

Quantity A

The remainder when $$3^{4n+2}+5$$ is divided by 10

Quantity B

4


Quantity A

The smallest integer $$n$$, $$n$$ > 2, such that $$n-2$$ is divisible by 3, 4, 5, and 6

Quantity B

362


If 5 minus the reciprocal of 5 is x+1, what is the value of x?

Give your answer as a fraction.
$$S$$ is the sum of 50 different numbers of the form $$1+\frac{1}{n}$$, where $$n$$ takes on positive integer values.

Quantity A

$$S$$

Quantity B

51


$$4 < x < y < 8$$

The ratio of $$x$$ to $$y$$ is 4 to 7.

Quantity A

$$y-x$$

Quantity B

3


A farmer blended corn and wheat to make 40 pounds of chicken feed. If the blend consisted of 3 parts of corn and 5 parts of wheat, by weight, how many pounds of the blend was corn?
$$x$$ is an integer.

$$1 ≤ k < 10.$$

$$\frac{120,000}{0.006}=(k)(10^x)$$

Quantity A

$$x-k$$

Quantity B

5


Which of the following is an integer?

Which of thefollowing is equivalent to $$36^{-1}$$?

Quantity A

$$(-2)^{-5}$$

Quantity B

-1


A quadratic equation of the form $$x^2-cx+d=0$$, where $$c$$ and $$d$$ are constants, has solutions 2 and 7. What is the value of $$d$$?

_____
A lecture hall has 15 rows of seats. There are n-2 seats in the first row and n seats in each of the other rows. ff there are no other seats in the lecture hall and the total number of seats in the lecture hall is between 180 and 200, what is the total number of seats in the lecture hall?
$$x^{3} < -8$$

$$y^{2} > 16$$

Quantity A

x

Quantity B

y


The function $$f$$ is defined for all numbers $$x$$ by $$f(x) = 2+ 3x$$.

Quantity A

$$f(x+4)-f(x)$$

Quantity B

12


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