Wow ! There's a lot of work here.
15 answers in return for 5 points is not reasonable.
You're lucky that I'm in a good mood right now.
a). 2
b). 2
c). +∞
d). doesn't exist (the function is not defined from x = -3 to x = 0.)
first e). correct
second e). not sure; I think it depends on direction;
+∞ if from the left; undefined if from the right.
f). 0
g). undefined
h). 0
i). -∞
j). correct
k). correct
l). correct
m). correct
n). correct
