Is r to the right of -6 on the number line?

(1) r is between -4 and -1 on the number line.
(2) r is between -3 and 1 on the number line.

Is y between -2 and 1 on the number line?

(1) y is to the right of -1 on the number line.
(2) y is to the left of 2 on the number line.

Is x to the right of -5 on the number line?

(1) x is to the right of -7 on the number line.
(2) x is between -4 and -3 on the number line.

Of the 25 cars sold at a certain dealership yesterday, some had automatic transmission and some had antilock brakes. How many of the cars had automatic transmission but not antilock brakes?

(1) All of the cars that had antilock brakes also had automatic transmission.
(2) 2 of the cars had neither automatic transmission nor antilock brakes.

If p is a positive odd integer, what is the remainder when p is divided by 4 ?

(1) When p is divided by 8, the remainder is 5.
(2) p is the sum of the squares of two positive integers.

Of the 800 students at a certain college, 250 students live on campus and are more than 20 years old. How many of the 800 students live on campus and are 20 years old or less?

(1) 640 students at the college are more than 20 years old.
(2) 60 students at the college are 20 years old or less and live off campus.

If x is a positive integer, is x < 16 ?

(1) x is less than the average (arithmetic mean) of the first ten positive integers.
(2) x is the square of an integer.

If n and m are positive integers, what is the remainder when ~$3^{4n + 2 + m}$~ is divided by 10 ?

(1) n = 2
(2) m = 1

If y and z are integers, is y(z + 1) odd?

(1) y is odd
(2) z is even.

If k is an integer and 2 < k < 8, what is the value of k ?

(1) k is a factor of 30.
(2) k is a factor of 12.