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

[Q]: Melissa has 70 oranges . John takes 19 away . How many oranges will Melissa have ?
[A]: 51


[Q]: Brennan had 0.25 grams of pepper . Then he used 0.16 grams of the pepper to make some scrambled eggs . How much pepper does Brennan have ?
[A]: 0.09


[Q]: George has 5 boxes of eggs . Each box holds 3 eggs and there are 9 boxes in a case . How many eggs does George have ?
[A]:
15