Can you guys check my answers?

6. what is the circumference of the given circle in terms of pi? ( the radius is 14)
14pi (my guess)
28pi
42pi
196pi

7. what is the area of the given circle in terms of pi? (the diameter is 9.6)
92.16pi
72.38pi
46.08pi
23.04pi (my guess)

8. what is the area of the sector with the central area of 210° and a diameter of 4.6m? round the answer to the nearest tenth.
4.2m squared
9.7m squared (my guess)
14.5m squared
38.8m squared

if you have the rest of the answers can you tell me them