astronomers have observed a small, massive object at the center of our milky way galaxy. a ring of material orbits this massive object; the ring has a diameter of about 15 light years and an orbital speed of about 200 km/s.

the histogram that represents the data with the largest spread is data set b

answer:

tap or click on the persons profile that you are wanting to friend then it will take you to there profile then it will say above message i’m pretty sure then you hit friend then you wait for them to friend you then you’ll get a notification that they are your friend. hope this have a great rest of your day

explanation: