What is the total when the B Score was 9.15 for Cheng Fei ( chn )?
CREATE TABLE table_name_70 (
    total INTEGER,
    b_score VARCHAR,
    gymnast VARCHAR
)
SELECT AVG(total) FROM table_name_70 WHERE b_score = 9.15 AND gymnast = "cheng fei ( chn )"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the total when the B Score was 9.15 for Cheng Fei ( chn )? ### Input: CREATE TABLE table_name_70 (
    total INTEGER,
    b_score VARCHAR,
    gymnast VARCHAR
) ### Response: SELECT AVG(total) FROM table_name_70 WHERE b_score = 9.15 AND gymnast = "cheng fei ( chn )"