Please show the correct solution and the graph.
Extracted text: Perpetuity Practice Problem Set No. 4: (Continuation) Problem 4: If money is worth 8% compounded quarterly, calculate the present worth of the following: (a) An annuity of P 1,000 payable quarterly for 50 years (b) An annuity of P 1,000 payable quarterly for 100 years (c) A perpetuity of P 1,000 payable quarterly