Answer: 6:30 P.M.
Explanation:
We have the following data:
is the distance the storm travels
is the time it takes to the storm travel the 35 miles
is the distance between you and the storm
So, we can solve this with the following formula:
(1)
Where
is the speed of the storm

(2)
Now that we know the spped of the storm, we have to calculate the time
it takes to reach you, taking into account you are 105 miles away:
(3)
(4)
(5)
If we add this 1.5 hours to your current time 5:00 P.M. we will have as a result the storm will reach you at 6:30 P.M.