15+15+15+15=60
Fifteen feet is fifteen feet long.
My brother is fifteen.
Yes
fifteen = fünfzehn
Fifteen.
Fifteen quadrillion. Fifteen quadrillion. Fifteen quadrillion.
"Fifteen" in Welsh is "pymtheg."
Thirteen is spelled "thirteen" and fifteen is spelled "fifteen."
"Fifteen" is an adjective when used to describe a noun, as in "fifteen people." It can also be a noun when referring to the number itself, as in "I will be there in fifteen."
fifteen and sixty-two thousandths
Eight and eight are not fifteen. Eight and eight are sixteen.