Which of these choices show a pair of equivalent expressions? Check all that apply.
A. (1/125) and 125317
B. 89/2 and (18)
O C. 121/7 and (112)?
O D. 45/2
and (4)

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)