Question 350819: Sam said to his friend :two days ago Kate was still 10. Her 13th birthday will be next year: when is Kate's birthday Answer by vleith(2983) (Show Source):
You can put this solution on YOUR website! Her birthday is February 29th. She has 'a real birthday anniversary' every leap year. And leap years are usually years that divide evenly by 4. So she has a birthday every 4 years.