If you know that a galaxy is 15 million parsecs away, how fast is it moving away from us?​

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Which best represents the law of conservation of mass ?