Type of primary, and a Call letters of kktx-fm has what average Frequency (MHz)?
CREATE TABLE table_name_40 (
    frequency__mhz_ INTEGER,
    type VARCHAR,
    call_letters VARCHAR
)
SELECT AVG(frequency__mhz_) FROM table_name_40 WHERE type = "primary" AND call_letters = "kktx-fm"
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: Type of primary, and a Call letters of kktx-fm has what average Frequency (MHz)? ### Input: CREATE TABLE table_name_40 (
    frequency__mhz_ INTEGER,
    type VARCHAR,
    call_letters VARCHAR
) ### Response: SELECT AVG(frequency__mhz_) FROM table_name_40 WHERE type = "primary" AND call_letters = "kktx-fm"