Four friends took a road trip. The entire trip was 180 miles. Jane drove 1/3 of the trip. Mark drove 1/6 of the trip. Isaac and Molly divided the rest of the driving equally. How many miles did Molly drive?

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?

State one method by which you can recognize a perfect square trinomial.

Sum of the interior angles of a pentagon