Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_77 (frequency_mhz INTEGER, call_sign VARCHAR)
### Question:
what is the highest frequency mhz with the call sign w292cu?
### Answer:
SELECT MAX(frequency_mhz) FROM table_name_77 WHERE call_sign = "w292cu"