Which answer choices represent equivalent expressions that show the relationship between multiplication and addition select all that appy A . 6 x 3
3 + 3 +3+3+3+3

B. 8x3
3+8

C 5 +2
2x2x2x2x2

D. 4+4+4+4+4
5x4

E. 7 x 3
7 x 7 x 7

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)