Lunar

Thanks to both of you!

Thanks alot!

Nobody really knows for sure, some say its an infinite number

I get it now, thanks alot!

Just, seriosly I dont know if these are jokes or not anymore.....

Its 1.

x=1.

11? I mean, I dont know how you can burp out more than you ate, but still.

I think it's 91. 

9+1=10 

10x2=20 

We reverse 91 to 19

19 is one less than 20.

I am not sure though.

Thanks alot CPhill! :)

3

Thanks alot!

Thanks alot, Melody!

For me there are 15 triangles total. Not sure though