A school class went on a field trip to see a magician perform. There were 17 females and 20 males in the class. The magician randomly selected a volunteer from the audience, which had 52 females and 68 males. Given that the randomly selected audience member is a student from the class, which equation can be used to find the probability, P, that the person is also a female?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

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?

Rectangle bcde is similar to rectangle vwxy. what is the length of side vy? a) 1 7 b) 2 7 c) 3 7 d) 4 7