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For the songs on Charlie's mp3 player, the ratio of folk songs to rock songs is 3:11. Which of the following statements about the songs on his mp3 player is(are) true?

I. There are fewer folk songs than rock songs.

II. For every 11 rock songs, there are 3 folk songs.

III. Folk songs comprise of the songs on Charlie's mp3 player.

(F) I only

(G) II only

(H) I and II only

(J) II and III only

(K) I, II, and III

A department store escalator is 25 feet long and forms an angle of 43° with the floor, which is horizontal. Which of the follow is an expression for the horizontal distance of the escalator from beginning to end?

(A) 25 sin 43° (B) 25 cos 43° (C) 25 tan 43° (D) 25 csc 43° (E) 25 sec 43°

Correct Answer: B

In ΔABD shown below, c is on , ⊥ , the length of is 6 inches, the length of is 10 inches, and sin d = 0.8. What is the area of ΔABD in square inches?

（A）6 （B） 12 （C） 24 （D） 30 （E） 60

Correct Answer: C

The lead of a screw is the distance that the screw advances in a straight line when the screw is turned 1 complete turn. If a screw is 2 inches long and has a lead of inch, how many complete turns would get it all the way into a piece of wood?

(A)5 (B)10 (C)15 (D)20 (E)25

Correct Answer: D