I can't see the rest of the paper and for number 9 you got it correct and I'm assuming you understand it, unless you just guessed. And I can't see the rest of the paper so I will be doing all of number 10.
Answer:
10.
a)
2005-2006
The only time the medicare funds are higher than the original amount they started out with on the graph is from 2005-2006. I think that is what they were looking for.
b)
15-16
For this one I'd say the funds decreased by about 15-16
c)
Both periods had about 6 billion dollars
Like it says on the paper this one is would be 6 because the points are over the 5 billion dollar mark.
d)
The answer is 2011
For this one I see why you put 2013 and if they were asking for when Medicare funds were at it's lowest it would be 2013. The answer to this question is actually 2011 because that is when the Funds first crossed the deficit line.
I hope I helped!