Answer:

Step-by-step explanation:
Circumference = pi * diameter = 21 * 22/7 = 66 m (answer)
Answer:
B. It is too risky to use credit cards online, and online payment services have better security because of the increasing number of hackers that may steal money from your bank account.
Step-by-step explanation:
Answer:
their is a 1 in 36 chance that happens