What is the roman numeral for CC XIX?

Answer 1

That is the Roman numeral.

The Arabic numeral (which is what we use in these modern times) for CCXIX is 219. That is, two hundred nineteen.

C = 100

X = 10

I = 1

IX = 9 (one before ten)

This last one is a Roman numeral trick to count backward from a high number instead of counting forward. If a lower-valued numeral ever comes before a higher-valued numeral, count backward from the higher one.

Once you know that each one means, you can just add them together:

100 + 100 + 10 + 9 = 219.