A system of equations is shown below. y = 3x + 9

y = x^2 - 1

What is the largest value of y in the solution set of the system?

A. -2

B. 24

C. 3

D. 5

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)