You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
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Question: Mary loves eating fruits . Mary paid $ 11.08 for berries , $ 14.33 for apples , and $ 9.31 for peaches . In total , how much money did she spend ?

Answer: 34.72


Question: Amy had 4 music files and 21 video files on her flash drive . If she deleted 23 of the files , how many files were still on her flash drive ?

Answer: 2


Question: A store had 120 coloring books in stock . They ended up putting them on sale and getting rid of 39 of them . The put the ones they still had onto shelves with 9 on each shelf . How many shelves did they use ?

Answer:
9