Answer:
9pi
Step-by-step explanation:
circumference= 2 (pi) (r)
radius = diameter \ 2
r = 9 \ 2 = 4.5in.
c = 2 (pi) (4.5)
c = 9pi or 28.3in.
Hope this helps!
y = -2x + 6
Steps:
y = mx + b
m is slope
b is the y-intercept
m = -2
b = 6
plug in m and b