Mathematics, 08.11.2019 17:31, xjuju1030

Last year the sales at a bookstore were 75% fiction books, and 25% nonfiction books.

the average cost of a fiction book was $15. the average cost of a nonfiction book was $16.

what was the average cost of all fiction and non-fiction books sold at the bookstore last year?

enter your answer as a decimal in the box.

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Last year the sales at a bookstore were 75% fiction books, and 25% nonfiction books.

the...