Can I please get a clean explanation as I have anotber problem to do.

Drill Problem 19-6 [LU 19-2 (2)] Complete the following using the present value formula or financial calculator. (Do not round intern "Periodic rate" to the nearest tenth percent. Round your final answer to the nearest cent.) Rate Compounded Amount desired at Length of time end of period $ 7,900 5 years Period used Periodic rate PV of amount desired at end of period 8 % Semiannually %: Drill Problem 19-6 [LU 19-2 (2)] Complete the following using the present value formula or financial calculator. (Do not round intermedi "Periodic rate" to the nearest tenth percent. Round your final answer to the nearest cent.) ok Rate Amount desired at Length end of period of time $ 7,900 5 years Compounded Period used Periodic rate PV of amount desired at end of period 8 % Semiannually % mices Drill Problem 19-7 [LU 19-2 (2)] Complete the following using the present value formula or financial calculator. (Do not round inter "Periodic rate" to the nearest hundredth percent. Round your final answer to the nearest cent.) Rate Compounded Amount desired at Length end of period of time $ 9,700 4 years Period used Periodic rate PV of amount desired at end of period 6% Monthly % FEU BE 1) 24 Ps A