Answer:
11 floors are between her and her car.
Explanation:
9th floor (Where she works
8th
7th
6th
5th
4th
3rd
2nd
1st (Ground floor)
-1
-2
-3
-4 (Where she parked her car)
So 13 floors in total. With two of them being her office and the other being the floor she parked her car in, so, there are 11 floors are in between those floors.