In a particular library, 18% of the books are children's books, 53% of the books are adult fictions, and the rest are adult non-fiction You choose one book at random. What is the probability that it is an adult non-fiction book ?

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Hi, can anyone show me how to do this problem? 100 points for this. in advance