Answer:
A series of payments of equal value, with an specific number of periods, and under the same interest rate is known as an annuity.
Reviewing the present value of annuity formula, the values needed are interest rate (included in the question), number of payments (included in the question), and dollar amount of equal payments (including in the question). Therefore, the other information needed to calculate the present value of the annuity is the compounding period.
As the payments are semiannual, we need an interest rate that is compounded semiannually too. If we are given an interest rate that is compounded with another periodicity, we will have to convert it to semianual.
I will attach the annuity present value formula below.
