Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the state rank of the company with 6.8 billion in revenue?

### Inputs:
table_name: table, columns: ['State Rank by Revenue', 'Company Name', 'National Rank', 'Revenue ($billions) 2012 estimate', 'Headquarters City', 'Known for']

### Response:
SELECT State Rank by Revenue FROM table WHERE Revenue ($billions) 2012 estimate = 6.8