I think this is the answer. i havent done any math for a while.
The answer is only I and II
The formula of a slope:
We have the points (2, 5) and (4, 10). Substitute:
This means that 2.5mm of rain falls every hour
The sum of n terms of a geometric series is given by
Substituting the given numbers, you have
There are 6 terms in the series.
True. These answers show a relationship because you add eight every time the pack goes higher.