What is 2.84 repeating is as a mixed number in simplest form?

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

Im literally having a mental breakdown