12 11
10
9
8
3 At their neighborhood pool, Talia is selling
popcorn and Gigi is selling lemonade. Talia's
sales from her popcorn stand can be
represented by the equation y = 1.25x. Gigi's
sales from her lemonade stand are represented
in the graph.
a. How much is Gigi charging for a cup of
lemonade?
Dollars
를
.
0 1 2 3 4 5 6 7 8 9 10 11 12
Lemonade sold (cups)
b. Who is earning faster? How much more per item is she earning?

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?