A bookstore sells three types of books: fiction, non-fiction, and children's books. The prices before tax are $15, $20, and $10 respectively. If a customer buys 3 fiction books, 4 non-fiction books, and 5 children's books, and the sales tax rate is 8%, how much does the customer pay in total, including tax? Let's think step by step and output the final answer within \boxed{}.
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