Four different objects are placed on a number line at 0. The chart describes the motion of each object. A 2-column table with 4 rows. The first column labeled object has entries W, X, Y, Z. The second column labeled motion has entries 3 units left, then 3 units right; 6 units right, then 18 units right; 8 units left, then 24 units right; 16 units right, then 8 units left.
Using the information in the chart, the distance and displacement of each object can be determined. Which object has a distance that is three times as great as its displacement?

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?