Imagine that you have obtained spectra for several galaxies and have measured the redshift of each galaxy to determine its speed away from us. Here are your results:

Galaxy 1: Speed away from us is 15000 .

Galaxy 2: Speed away from us is 20000 .

Galaxy 3: Speed away from us is 25000 .

Estimate the distance to each galaxy from Hubble’s law. Assume that .

thats the ? you need to figure out glaxy 1, 2, and 3. I've used up almost all of my guessing points. Please help!