Thread: Counting (Permutations & Combinations)

I am stuck with these two questions.
Can anybody give some help with these questions?
Thanks!
Any help would be appreciated.

For part a), how many ways can 7 identical objects be put into 3 distinct cells?

For part b), how many ways can 8 different objects be given to one person?
How many ways can 7 different objects be given to three persons?
Now multiply those two.