What is the Date that has MARTIN of 7 9% and no Undecided?
CREATE TABLE table_36882 (
    "Source" text,
    "Date" text,
    "MARTIN" text,
    "GR\u00dcNE" text,
    "Others" text,
    "Undecided" text
)
SELECT "Date" FROM table_36882 WHERE "Undecided" = '–' AND "MARTIN" = '7–9%'
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 Date that has MARTIN of 7 9% and no Undecided? ### Input: CREATE TABLE table_36882 (
    "Source" text,
    "Date" text,
    "MARTIN" text,
    "GR\u00dcNE" text,
    "Others" text,
    "Undecided" text
) ### Response: SELECT "Date" FROM table_36882 WHERE "Undecided" = '–' AND "MARTIN" = '7–9%'