Future value. Jack and Jill are saving for a rainy day and decide to put ​$70 away in their local bank every year for the next 25 years. The local​ Up-the-Hill Bank will pay them 5​% on their account. a. If Jack and Jill put the money in the account faithfully at the end of every​ year, how much will they have in it at the end of 25 ​years? b. ​ Unfortunately, Jack had an accident in which he sustained head injuries after only 10 years of savings. The medical bill has come to ​$900. Is there enough in the​ rainy-day fund to cover​ it? a. If Jack and Jill put the money in the account faithfully at the end of every​ year, how much will they have in it at the end of 25 ​years?