How do we know 35 is a number in the equation?
A reverse image search of the hint image shows it is from the ISS Expedition 35 patch. 
Show Image
Good Work Guys!
35 is one of the numbers you @re looking for. 
My dog's half birthday is coming up, so that is what I am rounding to.  If you don't know what that means, make a friend. 
Some people have been posting a lot today. If you guessed more than 3 times, please wait until tomorrow.  IF YOU DO NOT FOLLOW these directions.
1. it will trigger a different series of riddles.  :eek:
2. You will not win anything THIS round. 
3. I may not let you win at all. 
4. Don't annoy me.
Cheers!
-Pdub