Answer:
6.93 km/h
Explanation:
To calculate her average speed, we need the "speed" formula, which is:
average speed = distance / time
You plug in your numbers and it will give you the answer.
Speed = 4.5km/0.65hr
= 6.923 km/h
Answer:
zircons
Explanation:
they are over 4.375 billion years old
Answer: Not 100% sure but I think it’s C.
Hope this helps! ^^