The question isn’t specified, so I can’t help you unless you drop the question in the comments
Answer:
Charles babbage was the father of computer.
Answer:
Im a student at college. The bus to college is fast, but it's expensive. I can buy a bike or a motorbike. I can't decide. Can you help me?
1.bus
2.fast
3.expensive
4. a bike
5. a motorbike
6.can't
7.can
Explanation:
It is the main idea of your concept... It's the thing that you try to explain