Please help Bob is the supervisor for a window washing company. He goes to a job site to inspect the work and make sure his crew has washed all the windows on a 25-story building. The crew’s description of their work is shown below:
 Start on 8 the floor
 Up 6 floors
 Descend 10
 Above 2
 Increase 15
 Down 3
 Ascend 7
 Lessen 5 floors
 Up 2
 The opposite of -2 floors
 Drop 15
 Descend 8
 Ascend 10
 Rising 6 floors
 Decrease 2
 Drop 3
 Sink 2 floors
 The opposite of -13
 Decrease 7
 Lower 14
 Advance 1 floor
 Increase 4
It is time for the crew to clock out for the day. What floors do they still have to finish? Explain how you solved it.