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

### Instruction:
What Authority has a decile greater than 5, with a roll of 170?

### Inputs:
table_name: table, columns: ['Name', 'Years', 'Area', 'Authority', 'Decile', 'Roll']

### Response:
SELECT Authority FROM table WHERE Decile > 5 AND Roll = 170