Jill can paint a room in 1 ½ hours. at that rate, how long will it take her to paint 6 rooms of the same size? a.4 1/2 hours b.7 1/2 hours c.9 hours d.12 hours

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)