Mrs. Jackson has four boxes of Christmas decorations. There are 15 decorations in each box. She was only able to use 35 decorations and decided to give the rest to her neighbor. How many decorations did she give? Give me reasons, before answering the question

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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Mrs. Jackson had a total of 4 x 15 = 60 decorations. Then she gave 60 - 35 = 25 decorations to her neighbor. So the final answer is 25.