# Math 157

posted by
**Rena**
.

I need some help I have to Select one problem from the self-practice exercises and teach the solution to your classmate as if they were an elementary school student. I have to explane it in full details.

The self-practice problem I chose was:

Suppose that the U.S. Senate consisted of 57 Republican and 43 Democratic Senators. How many different 12-person committees could be formed with 8 Republican senators and 4 democratic senators?