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

Context: Jerry had 3 books and 4 action figures on a shelf in his room. Later he added 2 more action figures to the shelf. 

 Question: How many more action figures than books were on his shelf?
3

Context: Dave had 59 files and 15 apps on his phone. After deleting some apps and files he had 12 apps and 30 files left. 

 Question: How many apps did he delete?
3

Context: After Olivia visited a supermarket there were 29 dollars left. If there were 54 dollars in her wallet initially 

 Question: How much did she spend?

25