Which of the following is a correct equation for the line passing through the point (-2,1) and having slope m=1/2? A. y=1/2x+2 B y=-2x+1/2 C y-1=1/2(x+2) D x-2y=-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)