Which is a number that can be written as a fraction in the form a/b? A. 0.9−−−√ B. 1.44−−−−√ C. 4.94−−−−√ D. 6.4−−−√

step-by-step explanation:

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

answer: your answer is a

arc length = radius * x ( in radians)

6 * pi = 18 * x

divide by 18 on each side

6 pi / 18 = x

pi/3 = x

the angle is pi / 3 radians

or   60 degrees