Marta was about to start the school year and needed to buy the necessary textbooks. She managed to buy five on sale, for $10 each. She had to order two textbooks online, which cost her a total of $40, and three she bought directly from the bookstore for a total of three times the cost of the online ordered books. How much in total did Martha spend on textbooks? Give me reasons, before answering the question
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Marta bought five textbooks on sale, for a total of 5 * 10 = $50. Three textbooks from the bookstore had a cost of 3 * 40 = $120. That means that Marta spent in total 50 + 40 + 120 = $210 on textbooks. So the final answer is 210.
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