Answer:
Step-by-step explanation:
use desmos.com
Answer:
C=2πr
Step-by-step explanation:
Its on the wall of my math class
You take the second decimal, and if it is 5 or over, you increase the first decimal by one. If the number is 17.96,you increase the first decimal by one which gives you 18. If the question asks for 1 decimal place, than put 18.0 :)