Maria bought a ticket to a ZOO. The regular price stands at $15, but she was able to get a 40% discount. How much did Maria pay for the ticket? Let's be accurate as possible.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The discount Maria got was 40 / 100 * 15 = $6. That means the price for her ticket was 15 - 6 = $9.
The answer: 9.