Find the accumulated value of an annuity due of $300 payable at the beginning of every month

Question:

Find the accumulated value of an due of $300 payable at the beginning of every month for seven years at 6% compounded monthly. 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,...