Economics Homework Help

I don’t know how to handle this Finance question and need guidance.

A 30-year-old student wants to save $10 a day for her retirement. Every day she places $10 in a drawer. At the end of each year, she invests the accumulated savings ($3,650) in a brokerage account with an expected annual return of 5%.

        (1) If she keeps saving in this manner, how much will she have accumulated at age 70?

(2)    If a 45-year-old investor began saving in this manner, how much would he have at age 70?

(3)    How much would the 45-year-old investor have to save each year to accumulate the same amount at 70 as the 30-year-old investor?