Mr. Rivera borrows Php 500,000, agreeing that money is worth 8% compounded semiannually. He will discharge principal and interest obligations by making equal payments at the beginning of each 6 months ( semi-annual) for 5 years. How much is the semi-annual payment? Php61,645.47 Php 45,784.89 Php 59, 274.49 None of the Above