There are two ways that are acceptable: Thirty-nine or Thirty nine
nine
Nine.
There are several ways to write 39.73: Thirty-nine point seven three Thirty-nine dollars and seventy-three cents (if referring to money) Thirty-nine seventy-three (a more casual money reference) Thirty-nine and seventy-three hundredths
nine feet are in three yards.
Ninety nine divided by nine equals eleven
take three match for each triangle
you can make the number nine twenty times
I can think of two ways:1). "Eight two zero three eight nine".2). "Eight hundred twenty thousand three hundred eighty-nine".
There are a couple of ways to write 8.639. Eight point six three nine Eight and six hundred thirty-nine thousandths.
You could write it in at least two different ways: twelve and thirty nine thousandths, or twelve point zero three nine.
You can make three different groups of three out of nine. 9/3=3