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.

John had 5 action figures , but needed 7 total for a complete collection . If each one costs $ 5 , how much money would he need to finish his collection ?
10

Eric has 3 boxes of pencils . Each box holds 9 pencils . How many pencils does Eric have ?
27

It took Amanda 2 hours to stroll to Kimberly 's house at 4 miles per hour . How far is it between Amanda 's house and Kimberly 's house ?
8