Well, I can't figure out the answer at the moment, but I can give you a tip. Just substite each possible sign in the to see if one works... for example: +++, x+-, ++-....
Hope this helps you out :)
What are you trying to find? If it’s the length, just divide 425 by 17, which is 35 ft!
2 16/99 as decimal should be:
2 + (16/99) = 2 +0.17 = 2.17
Paris,munish and Oslo are mistake 。