What is the mean Evaluation number (Before April 2009) when the percentage of negative evaluations was 0.8% and the mean Evaluation number of April 2009 was 4.2?
CREATE TABLE table_52898 (
    "Evaluation average (From February 2011)" real,
    "Evaluation average (From April 2009)" text,
    "Evaluation average (Before April 2009)" text,
    "% of negative evaluations" text,
    "Submitting schedule on time" text,
    "Punctuality/Attendance issues" text,
    "Peak lessons taught" real
)
SELECT "Evaluation average (Before April 2009)" FROM table_52898 WHERE "% of negative evaluations" = '0.8%' AND "Evaluation average (From April 2009)" = '4.2'
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 mean Evaluation number (Before April 2009) when the percentage of negative evaluations was 0.8% and the mean Evaluation number of April 2009 was 4.2? ### Input: CREATE TABLE table_52898 (
    "Evaluation average (From February 2011)" real,
    "Evaluation average (From April 2009)" text,
    "Evaluation average (Before April 2009)" text,
    "% of negative evaluations" text,
    "Submitting schedule on time" text,
    "Punctuality/Attendance issues" text,
    "Peak lessons taught" real
) ### Response: SELECT "Evaluation average (Before April 2009)" FROM table_52898 WHERE "% of negative evaluations" = '0.8%' AND "Evaluation average (From April 2009)" = '4.2'