€100 wa inveted in a aving account. After 10 year, there i €300 in the account. Work out how much money would have been in the account after only 5 year if it had been gathering a) annual imple interet. B) annual compound interet. Give each of your anwer to the nearet €1. C) Will the aving account have more money in it after 15 year if it i gathering annual imple interet or annual compound interet?