How many viewers in millions for episode number 38?
CREATE TABLE table_28257 (
    "No." real,
    "#" real,
    "Title" text,
    "Director" text,
    "Writer(s)" text,
    "Original air date" text,
    "Prod. code" real,
    "U.S. viewers (million)" text
)
SELECT "U.S. viewers (million)" FROM table_28257 WHERE "No." = '38'
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: How many viewers in millions for episode number 38? ### Input: CREATE TABLE table_28257 (
    "No." real,
    "#" real,
    "Title" text,
    "Director" text,
    "Writer(s)" text,
    "Original air date" text,
    "Prod. code" real,
    "U.S. viewers (million)" text
) ### Response: SELECT "U.S. viewers (million)" FROM table_28257 WHERE "No." = '38'