My sister needs help can y’all pls look at the picture and help me answer the question I don’t understand it Bc I’ve become brain dead to this ( 12 points!!)

Convert 2000 swiss francs to dutch guilders

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)

Which graph represents the linear function below? y-3=1/2(x+2)