is 0 greater than or equal to negative 12

Zero is greater than every negative number, so zero is greater than -12.

It is also correct to say that "0 is greater than or equal to -12".

thx so much

This is a semantics issue.

If "greater than or equal to" means mathematically > then yes.

If "greater than or equal to" means which one, then it's greater than.

0 is greater than –12 but 0 is not equal to –12

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See..., -12 and 0 are dark holes; but -12 is much deeper and darker.