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.

Example Input: Nancy had 80 files on her computer . She deleted 31 of them and put the rest into folders with 7 files in each one . How many folders did Nancy end up with ?
Example Output: 7

Example Input: During 1 year , the Wagners ' real estate bill included 600 dollars for local schools . Of this amount , 150 dollars went to the high school district . What percent did the Wagner family pay to the high school district ?
Example Output: 25

Example Input: On Saturday , Sara spent $ 10.62 each on 2 tickets to a movie theater . She also rented a movie for $ 1.59 , and bought a movie for $ 13.95 . How much money in total did Sara spend on movies ?
Example Output:
36.78