If you are given the equation for a circle as (x+9)2+(y+7)2=289
what is the center and radius?

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Sandy is ordering bread rolls for her party, she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.