The idol's eye diamond weighs 79.2 carats. the blue hope diamond weighs 33.68 carats less than the idol's eye. what is the weight of the blue hope diamond?

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?

Perform the indicated operation. y^2 + 3y - 10 / 3y + 15

How can you write the expression with a rationalized denominator? 5−√2 √3