9different books are to be arranged on a book-shelf. 4 of these books were writtenby shakespeare, 2 by dickens and 3 by conrad. how many possible permutationsare there if the books by dickens are separated from each other?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

Which of the following statements are true about the graph of f (x) = 1/4 coz ( x + π/3) - 1? select two of the following that apply.