If x = 3 and y = 6, is y > nx + k ?

(1) n = 5
(2) k = -10

If a certain company purchased computers at $2,000 each and printers at $300 each, how many computers did it purchase?

(1) More than three printers were purchased.
(2) The total amount for the purchase of the computers and the printers was $15,000.

At a certain refreshment stand, all hot dogs have the same price and all sodas have the same price. What is the total price of 3 hot dogs and 2 sodas at the refreshment stand?

(1) The total price of 5 sodas at the stand is less than the total price of 2 hot dogs.
(2) The total price of 9 hot dogs and 6 sodas at the stand is $21.

If a, b, and c are positive integers, is b between a and c ?

(1) b is 3 greater than a, and b is 5 less than c.
(2) c is 5 greater than b, and c is 8 greater than a.

In the xy-plane, point P has coordinates (a, b) and point Q has coordinates (c, d). What is the distance between P and Q ?

(1) b - d = 4
(2) a - c = 3

If K is a positive three-digit integer, what is the hundreds digit of K ?

(1) The hundreds digit of K + 150 is 4.
(2) The tens digit of K + 25 is 7.

At a certain stand, all soft drinks cost the same and all sandwiches cost the same. How much does 1 sandwich cost at the stand?

(1) At the stand, 1 sandwich and 2 soft drinks cost a total of $3.15.
(2) At the stand, 3 sandwiches and 1 soft drink cost a total of $5.70.

Of the 20 people who each purchased 2 tickets to a concert, some used both tickets, some used only 1 ticket, and some used neither ticket. What percent of the tickets that were purchased by the 20 people were used by those people?

(1) Of the 20 people, 10 used only 1 ticket.
(2) Of the 20 people, 4 used neither ticket.

A manufacturer produced x percent more video cameras in 1994 than in 1993 and y percent more video cameras in 1995 than in 1994. If the manufacturer produced 1,000 video cameras in 1993, how many video cameras did the manufacturer produce in 1995 ?

(1) xy = 20
(2) ~$x+y+\frac{xy}{100}=9.2$~

If machine J, working alone at its constant rate, takes 2 minutes to wrap 60 pieces of candy, how many minutes does it take machine K, working alone at its constant rate, to wrap 120 pieces of candy?

(1) Machine K, working alone at its constant rate, takes more than 5 minutes to wrap 60 pieces of candy.
(2) Machines J and K, working together at their respective constant rates, take 1 minute and 30 seconds to wrap 60 pieces of candy.