**multiple questions** 1. part a: calculate the diameter of the circle J if the circumference is 100.48 centimeters.
part b: calculate the circumference of circle J if the radius is 7 meters

2. brianna ran 6 laps around a circular track with a diameter of length 120 feet. how far did she run? use 3.14 for (looks like t but it’s the formula). round answers to the nearest hundredth if necessary.

3. write the formula for the area of a circle. using oi for the symbol (looks like t but is the formula)