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Can you simplify 4/7? 24 points will be awarded!

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

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)