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

### Instruction:
What are the average net yards that have 9 as the touchdowns, 145 as the attempts, and yards per attempt greater than 4.8?

### Inputs:
table_name: table, columns: ['Player', 'Attempts', 'Net yards', 'Yards per attempt', 'Touchdowns']

### Response:
SELECT AVG Net yards FROM table WHERE Touchdowns = 9 AND Attempts = 145 AND Yards per attempt > 4.8