4250 millimeters.
Half of 8.5m is 4.25m.
4.25 m to mm is 4250.
It is 28 because you have to take the median out then go to the first set of data and find the median of that.
Answer:
-50
Explanation:
At sea level would be 0 so anything above would be a positive number and anything below a negative number.
