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_1817879_2 (length__miles_ VARCHAR, endpoints VARCHAR)
### Question:
What is the length  (miles) when pico to 7th st/metro center are the endpoints?
### Answer:
SELECT length__miles_ FROM table_1817879_2 WHERE endpoints = "Pico to 7th St/Metro Center"