Calculate the present values P of an annuity in which $10,000 is to be paid out annually perpetually, assuming interest rates of r=0.04,r=0.05, and r=0.06. Round to the nearest cent. At r=0.04,P=$ At r=0.05,P=$ At r=0.06,P=$ Calculate the present values P of an annuity in which $10,000 is to be paid out annually for a period of 20 years, assuming interest rates of r=0.05,r=0.07, and r=0.08. Round to the nearest cent. At r=0.05,P=$ At r=0.07,P=$ At r=0.08,P=$ Express the sum of the power series in terms of geometric series, and then express the sum as a rational function. Enter only the rational function as your answer. x+x2x3+x4+x5x6+ Hint: Group powers x3k,x3k1, and x3k2