Who knows what each letter of the Roman Alphabet stand for?

Question

V=5 & X=10 What about M, C, and the rest if any?

Answer 1

Those are Roman Numerals, not Roman Alphabet.
I = 1
V = 5
X = 10
L = 50
C = 100
M = 1,000

Answer 2

The sites below describe how the Roman Alphabet came to be.

As for the Roman numerals the responder above is right;
M = 1000, C = 100 and L = 50.

The second site is a cool animation of how the letters evolve and when some were added.

Answer 3

M = thousand, C = hundred, I =1, L=50