Table: race_results_19
Columns: season
date
winning_driver
car
sponsor
make
team
avg_speed
margin_of_victory

Question: What team ran car #24 on August 30?
SQL: SELECT "team" FROM race_results_19 WHERE "car" = 24 AND "date" = 'august 30'

Question: What was the average speed of Tony Stewart's winning Chevrolet Impala?
SQL: SELECT "avg_speed" FROM race_results_19 WHERE "winning_driver" = 'tony stewart' AND "make" = 'chevrolet impala'