C=2pir
pi=3.14
r=18
c=(2)(3.14)(18)
c=(6.28)(18)
c=113.04
D is answer
1/21 simplified fraction form and the decimal form is 0.0476
Answer:
A) Fifth Period.
B) Fourth Period
C) I dont get this one. If you can explain what they mean, I will be happy to help!
Step-by-step explanation:
