One thousand, two hundred and thirteen
12.13 = 1213/100
well, they can be tv reviewers who write reviews for tv.
If B = {10111213} and C = {1213} then their intersection is the empty set, {}.The union of A with an empty set is set A.
1213 x 246565 = 299083345
It is 1213.
Stephen Langton was the Archbishop of Canterbury in 1213.
12 and 13/20
1213+356 = 1569
1213 bc
12*13=156
1034
1213/100