Can anyone help me do this essay please ill give u my email if u agree

What percent change represent a percent increase

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies?

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted