Bentley earned a score of 52 on Exam A that had a mean of 74 and a standard deviation of 20. He is about to take Exam B that has a mean of 300 and a standard deviation of 20. How well must Bentley score on Exam B in order to do equivalently well as he did on Exam A? Assume that scores on each exam are normally distributed.

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

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?

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points