Determine which statement uses an invalid argument. A.
If it is hot outside, then Theresa will not wear a scarf and hat. Theresa is not wearing a scarf and hat. Therefore, it is hot outside.
B.
All practicing nurses must pass the state nursing exam. Jane did not pass the state nursing exam. Therefore, Jane is not a practicing nurse.
C.
If it is Monday, then the store opens at 10 a. m. It is Monday. Therefore, the store opens at 10 a. m.
D.
The public pool closes at 4 p. m. It is 7 p. m. Therefore, the public pool is closed.

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?

I’m confused on how to work the pie charts

If you measured the width of a window in inches and then in feet with measurement would you have the greater number of units