Use the following scenario to answer the question below: when the new book units of fire was released, jonathan decided to read it in one sitting for his book report. he started at 11: 00 a. m. on saturday morning and read until 8: 00 p. m. that night, for a total of 9 hours. for school, however, he needed to record the exact number of minutes he spent reading. what is the order of magnitude of the number of seconds he read? a.2 b.3 c.5 d.4

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 need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x