catherine has $54. she plans to spend more than $20 of the money for a painting canvas. the rest will go toward paints. each tube of paint costs $8.50. assume that x represents the number of tubes of paint catherine can buy.
the inequality that best represents this scenario is a. 8.5 + 20 > 54. b. 8.5x - 20 < 54. c. 54 - 8.5x > 20. d. 54 - 8.5x > 20

the number of tubes of paint catherine can buy is . a. at least 5. b. more than 4. c. less than 4. d. more than 5.

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?