7. Ms. Lucas conducted a survey of 40 randomly chosen students she teaches.
The survey results showed that 23 are in
the marching band and 25 are taking
Spanish class. There are 12 students both
in the marching band and taking Spanish
class.
a.
How many students are in the
marching band and not taking Spanish?
How many students are taking
Spanish and not in the marching band?
C. How many students are neither in
the marching band nor taking Spanish
class?

How do i do this activity, is appreciated

Can anyone me with 32,33,36,37,and 40.

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?