Astronomer alan says the universe is expanding at one rate and astronomer wendy says it is expanding at a faster rate. all other things being equal, which astronomer would say that the universe is older?

Allan Sandage

Explanation:

Allan Sandage is an american astronomer that has undertaken extensive efforts to evaluate Hubble's constant rate of universe expansion.

in the beginning of his career in 1958 , the primary focus of Allan is to evaluate the Hubble's constant rate.

He used many different techniques to determine the distance to several galaxies. From these many different calculations,  average value of Hubble's constant was about 50 km/sec/megaparsec.

answer; not notated (at least, not in the traditional sense) and includes many improvised sections and solos;