Cornet cable charge $32.50 a month for basic cable television. each premium channel selected costs an additional $4.95 per month. write an expression to find the cost of a month of cable service.
a.
32.50c + 4.95
c.
32.50 + 4.95
b.
32.50c + 2(4.95)
d.
32.50 + 4.95c

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?