A bookseller is grouping bestselling fiction and nonfiction titles on a store display. She can choose 30 different books to display.
She will choose 20 of 30 possible bestselling fiction titles for the display.
She will choose 10 of 25 possible nonfiction titles for the display.
Use the template below to show the notation for calculating the number of possible combinations without repetition for the 30 books on display.
