–5(6 + 11)

a.
(–5) • 6 + 11

b.
(–5) + 6 + 11

c.
(–5) • 6 • 11

d.
(–5) • 6 + (–5) • 11

i think it is a

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)