Sofia can deposit $350 at the beginning of each month into an account that earns 4.2% compounded

Question:

Sofia can deposit $350 at the beginning of each month into an account that earns 4.2% compounded monthly. How long before the account contains $17,000?
(a) State whether the problem relates to an ordinary or an due, and then
(b) Solve the problem.
Annuity
An annuity is a series of equal payment made at equal intervals during a period of time. In other words annuity is a contract between insurer and insurance company in which insurer make a lump-sum payment or a series of payment and, in return,...