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

[Q]: Sally paid $ 12.32 total for peaches , after a 3 dollar coupon , and $ 11.54 for cherries . In total , how much money did Sally spend ?
[A]: 23.86

[Q]: Luke made 9 dollars mowing lawns and 18 dollars weed eating . If he only spent 3 dollar a week , how long would the money last him ?
[A]: 9

[Q]: A marine biologist measured 1 fish that was 0.3 foot long and a second fish that was 0.2 foot long . How much longer was the first fish ?
[A]:
0.1