A) A cosmologist measures the value of the Hubble constant to be H=27.9 km/s/e6 light years. The reciprocal of H (1/H) provides an estimate of the age of the universe. What value would this cosmologist estimate for the age of the universe? Express your answer in seconds.
B) Express your estimate for the age of the universe in years.
C) Calculate the recession velocity this value of the Hubble constant implies for a star 17*10^(6) lightyears away.