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.

Ex Input:
In a video game , each enemy defeated gives you 7 points . If a level has 11 enemies total and you destroy all but 8 of them , how many points would you earn ?

Ex Output:
21

Ex Input:
Lena drove 204 miles . Using 10 gallons of gas at this rate , how many gallons of gas would she need to drive 255 miles ?

Ex Output:
12.5

Ex Input:
You deposit 70 dollars in a savings account that pays an annual interest rate of 3 % . How much simple interest would you earn in 2.5 years , in dollars ?

Ex Output:
5.25