it is a brief exercise problem about present and future value I need help with 4 through 8

\"Glue Ufa 'f 012 mmHin; nine of}; known a: m 9 CO '1'] O '1 a: m n 5" O .h Annual Number of Rate Years Involved Case A 12% 7 Case B 8% 11 Case C 10% 8 Discounts per Year Annually Annually Semiannually (2) In Table 4 (present value of an annuity of 1): Annual Number of Number of Frequency of Rate Years Involved Payments Involved Payments Case A 10% 20 20 Annually Case B 10% 7 '7 Annually Case C 6% 5 10 Semiannually BEG-9 (a) What is the present value of $25,000 due 9 periods from now, discounted at 10%? (b) What is the present value of $25,000 to be received at the end of each of i periods, discounted at 9%? that will return a lump sum ' - ' is considerin an investment . 9fa BEG 1 0 Mess} Company g empany pay for this mvestme $900,000 6 years from now. What amount should Messi C to earn an 8% return? now. What is the amount Lloyd should inves contract that will ret . . . - - 't s1der1ns InveS'mg 1\" an mm y should Robben C BEG-12 Robben Company is con 1: $40,000 annually at the end of each year for015 years5What amoun pany pay for this investment if it earns an 8 /0 return. 356-1 .31 KaehlerE-nterprises eams ofeach of thenext Eli?\" What is ' _