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.

Megan has 19 seashells . How many more seashells does she need to find to have 25 seashells in her collection ?
6

Tom purchased a Batman game for $ 13.6 , and a Superman game for $ 5.06 . Tom already owns 2 games . How much did Tom spend on video games ?
18.66

Jacques earns 8.6 dollars per hour . For each hour over 40 hours he earns 12.9 dollars per hour . If he works 55.5 hours in a week , what pay should he receive ?

543.95