1a) Samantha needs to buy a new pair of shoes for $17,856. sHe knows if she saves money in a savings account, she can earn 6% annually. How much money does she have to put into the savings account 5 years before she wants to buy the shoes? show What Excel function should she use to determine how much money she has to put into the savings account 5 years before she wants to buy the shoes?

1b) Sam bought $7,000 stocks. He is expecting a 17% annual interest rate return over 10 years. How much will he have in 10 years? What Excel function should he use to determine the answer.