1. What do we know about the pivot and it's final location in the sorted array after a call to partition?  Remember, after partition is called all of the elements to the left of the pivot are less than or equal to it and all of the things to the right are greater.

2. What will be the resulting array if we call the partition with start = 0 and end = 7 on the following array:

[8, 7, 6, 5, 4, 3, 2, 1]