Nineteen billion, six hundred seventy-three million, eight hundred ninety thousand, ninety-four.
A number with seven commas in it is 100,000,000,000,000,000,000,000 or you can call it in word form sextillion
There are no hyphens in the word ago.
Hyphens serve as bridges for stray letters moving from word to word.
hyphen
They are considered as one word.
put commas in 1,784,000 one million, seven hundred and eighty-four thousand
The word "affection" does not require a hyphen.
sisters-in-law
path-oecologist
Because hyphens are dashes. Word changes double dashes into em dashes (the long dashes) automatically if there is a space before and after the double dash.
Errm... Inverted commas?
Sister-in-law. With the hyphens, it's one word. : )