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12-48.

Mr. K wants to bring a variety of language textbooks to his classroom for students to explore. In his home library, he has four Russian texts, seven German texts, one Japanese text, two Italian texts, and three Danish texts. He decides to bring one book of each language to the classroom and put them in alphabetical order by language on his bookshelf (Danish, German, Italian, and so forth). In how many different ways can Mr. K arrange the new language books? Homework Help ✎

If Mr. K only had his 3 Danish and 7 German texts, he would have 21 different arrangement options.