Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2w7/ Esercizi: http://www.khanacademy.org/exercises?exid=age_word_problems Traduzione in Italiano del video http://www.youtube.com/watch?v=pPqPj8CAPvI http://www.khanacademy.org/video/age-word-problems-2?playlist=Algebra Help us caption & translate this video! http://amara.org/v/B2w7/