Table: vegas_grand_prix_2007
Columns: driver
team
laps
time_retired
grid
points

Question: How many average points did the player with a time/retired of +16.789 and have more laps than 68 have?
SQL: SELECT AVG("points") FROM vegas_grand_prix_2007 WHERE "time_retired" = '+16.789' AND "laps" > 68

Question: How many average points did the team Minardi Team USA have when there was a grid 3 and more laps than 68?
SQL: SELECT AVG("points") FROM vegas_grand_prix_2007 WHERE "team" = 'minardi team usa' AND "grid" = 3 AND "laps" > 68