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If x and y are integers, and $$w=(x^{2})y+x+3y$$, which of the following statements must be true?

Indicate all such statements.
2600 has how many positive divisors?
If a, b, c, d, e and f are integers and (ab + cdef)< 0, then what is the maximum number of integers that can be negative?
n is a positive integer, and k is the product of all integers from 1 to n inclusive. If k is a multiple of 1440, then the smallest possible value of n is
How many odd, positive divisors does 540 have?
M is a positive two-digit number. When the digits are reversed, the number is N. If K = M + N, which of the following is true?
If x is the greatest common divisor of 90 and 18, and y is the least common multiple of 51 and 34, then x + y =
If k is a non-negative integer and $$15^{k}$$?is a divisor of 759,325 then $$3^{k}?-k^{3}?$$
If x and y are positive integers, and 1 is the greatest common divisor of x and y, what is the greatest common divisor of 2x and 3y?
If n = 2*3*5*7*11*13*17, then which of the following statements must be true?

I. $$n^{2}$$ is divisible by 600

II. n + 19 is divisible by 19

III. $$\frac{n+4}{2}$$is even
In the game of Dubblefud, red chips, blue chips and green chips are each worth 2, 4 and 5 points respectively. In a certain selection of chips, the product of the point values of the chips is 16,000. If the number of blue chips in this selection equals the number of green chips, how many red chips are in the selection?
If x is an odd negative integer and y is an even integer, which of the following statements must be true?

I. (3x - 2y) is odd

II. $$ xy^{2}$$ is an even negative integer

III. $$ (y^{2}-x)$$ is an odd negative integer
How many integers from 1 to 900 inclusive have exactly 3 positive divisors?
How many positive integers less than 100 have a remainder of 2 when divided by 13?
Yesterday, a certain school had an equal number of boys and girls. Today, 18 boys left the school, and the ratio of the number of boys to girls is now 3 to 4.

Quantity A

Number of boys in the school now.

Quantity B

72


Quantity A

0.05 percent of 4000

Quantity B

$$\frac{1}{200} of 4000$$


Ashley's score was 20% higher than Bert's score. Bert's score was 20% lower than Charles' score.

Quantity A

Ashley's score

Quantity B

Charles' score


Quantity A

$$(\frac{4}{5})$$%

Quantity B

0.8


Yesterday, Carl had 40 percent more CDs than Karen had. Today, Carl gave 20 percent of his CDs to Karen.

Quantity A

Number of CDs that Carl now has

Quantity B

Number of CDs that Karen now has


The sales tax at a certain store is 15 percent. The total price of an item, including sales tax, is $45.

Quantity A

Price of item excluding sales tax

Quantity B

$39


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