i need anwers to this activity please

Assume you are investor and planning to invest your money in riskless financial securities. You decides to invest in the bond. You received the offer from three companies as given below:- Company 1: Par value of bond OMR 20,000 pays OMR 2,000 at the end of each year and has maturity period 4 years. The discount rate (k) is 12%. Calculate PV of bond using only manual method. Company 2: Par value of bond OMR 20,000 pays OMR 2,000 at the end of each year and has maturity period 5 years. The discount rate (k) is 14%. Calculate PV of bond using only present value table method. Company 3: Par value of bond OMR 20,000 pays OMR 2,000 at the end of each year and has maturity period 6 years. The discount rate (k) is 10%. Calculate PV of bond using only annuity table and present value table method. Which offer would you like to accept