user: Question: With team #21/#07 SS-Green Light Racing, what was the average finish number?
Columns: ['Year', 'Starts', 'Wins', 'Top 5', 'Top 10', 'Poles', 'Avg. Start', 'Avg. Finish', 'Winnings', 'Position', 'Team(s)']
Types: ['real', 'real', 'real', 'real', 'real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1995.0, 20.0, 1.0, 9.0, 14.0, 0.0, '11.8', '9.5', '$182,533', '4th', '#98 Liberty Racing']
SQL:

assistant: SELECT "Avg. Finish" FROM "Table" WHERE "Team(s)" = '#21/#07 SS-Green Light Racing';