Marcela has two 16 34 inch wide paintings to hang on her 15 foot wide wall. She wants the
paintings to be centered 25% of the way in from
the left and right edge of the wall. How many
inches from the edge will (a) the hook need to
be placed and (b) will the edge of the frame be
from the edge of the wall?

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?