Chapters 7 and 8

-7.2
1.ok
2.parallel circuit...
3.no idea
4.ok.
5.A and B
6.Not A and B
7.Series of all 3.
8.huh?
9.A and B or Not A and B
10.ok
11.????
12.A and B and the A or B

-7.3
1.I was nervous when I found myself a little lost on this part of the chapter, but by the looks of other people's blogging, I'm not the only one. It seems not as important as the other stuff I've learnt so far.

-8.2
1.1000
2.30
3.2205
4.2^10
5.2^10?
6.10!+1
7.16^3
8.5!/2

-8.3
1.9*8*7
2.26!/21!
3.30!/25!+36!/31!
4.8!/2?
5.8!/2
6.12!/60 pages

-8.4
1.12!/2
2.120
3.1260
4.8?
5.5!
6.Not sure

-8.5
1.help
2.help again
3.40!/5!?
4.
def nChooseK(n, k):
 total = 1
 while (k>0):
  total*=(n/k)
   n--
   k--
  return total
5.?
6.? again.
7.not sure
8.n/x?
9.say what?
-I need help with what formulas to use when.

-8.6
1.20
2.6, im doing this all one by one, not sure how to do the simple way...
3. infinite
4.