Math
posted by Jen .
The cardinal number of the set {cat, dog, horse, fish, lizard, meerkat, rhinoceros, elephant, giraffe, platypus, hippopotamus, skunk} is ____.
I think its 12 right?

I usually call it cardinality.
It's right if you have the good reason for it. Can you explain? 
because its the amount in the {}

I suppose you mean "the number of elements in the set".
That would be correct. 
yes :) thanks

You're welcome!