1) C
2) 2[A]
3) 2[A]
4) a less bright (?)
b 1 [A]
c 1 [A]
5) brighter (?)
6)
a 0.8 (if it is the one on the right of 6)
b 0.4 [A]
c 0.4 [A]
d depends on where you place it.
7)
a place it next to X, right or left
b place it just after the source
(?) = not sure
If you have more questions ask.