1. ## set theory help please

I posted this elsewhere and just realized it was in the wrong place so sorry about that. Heres my problem:

I know total number of elements in set A, the total number of elements in set B, and the total number of elements in set C. I also know the number of elements in A intersects B, A intersects C, B intersects C, and I know the number of elements that are not in A, B, or C. How do I find:

1. The number of elements in A intersects B intersects C, and;
2. The number of elements exclusive to set A, set B, and set C?

2. This is the set of elements exclusive to A: $A \cap B^c \cap C^c = A\backslash \left( {B \cup C} \right)$.
$\left| {A \cap B^c \cap C^c } \right| = \left| A \right| - \left| {A \cap B} \right| - \left| {A \cap C} \right| + \left| {A \cap B \cap C} \right|$