You are given a math word problem and you are supposed to apply multiplication or division mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Example Input: A waiter had 9 tables he was waiting on , with 7 women and 3 men at each table . How many customers total did the waiter have ?
Example Output: 90

Example Input: Each banana costs $ 5 . How much do 4 bananas cost ?
Example Output: 20

Example Input: It takes 7 minutes to bake one pan of cookies . How long will it take to bake 4 pans of cookies ?
Example Output:
28