02.05 physical models: I need a model and a one paragraph summary describing the topic you chose, your model, what it represents, how you made it, and the specific science involved.

Here are your topics to chose from:
- Conservation of mass
- Atomic theory
- Thermal energy.

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.