You are given a math word problem and you are supposed to apply a single mathematical operator 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: tom had $ 19 and he wanted to buy as many folders as he could . if 1 folder costs $ 2 how many folders can tom buy ?
Example Output: 9.5

Example Input: jerry had $ 18 . he spent $ 6 on new video games . how much money does he have now ?
Example Output: 12

Example Input: tiffany was buying hand towels for her house . she bought 9 packs with each pack having 3 towels in it . how many towels did she buy ?
Example Output:
27