Math Is Fun Forum

Oh, I don't know much about combinations but:

I don't actually know if this is right, but I know this gas is used in glowing advertising signs and is a noble gas

I get

Sorry, what does maturity mean?

Hello again!

I don't know actually :\
But doesn't altitude mean perpendicular height
And if so, you would have to use pythagorean theorem to work it out?!?

Hello

Hi again

I'll edit if I get 3139

Thanks

Hiya

Hello

I don't think my answers are right but worth a try :3

I think this is right...