what does a business plan look like ?

there is no standard format for a business plan, but there are many common compenents of a business plan :
executive summary
table of contents

1. statement of purpose
2. company history
3. business description 
4. products and services
5. market analysis
1. customers
2. competition
3. marketing strategy
6. management
7. operations
8. financial plan
9. appendices 

many business plan will also include appendixes with additional information related to the business, its operations, its owners/managers, marketing/promotional plans, etc