Which pair of numbers has a sum of 0? 1) 2 and 12
2) 2 and –12
3) 2 and –0.2
4) 2 and –2

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.

72 is the answer to this problem