Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.

[EX Q]: paul made 44 dollars mowing lawns and 28 dollars weed eating . if he only spent 9 dollar a week how long would the money last him ?
[EX A]: 8

[EX Q]: debby had 12 pounds of flour . if she bought another 4 pounds how many pounds would she have total ?
[EX A]: 16

[EX Q]: lucy went to the grocery store . she bought 12 packs of cookies and 16 packs of noodles . how many packs of groceries did she buy in all ?
[EX A]:
28