What is the mean Evaluation number (before April 2009) when the Peak lessons taught was less than 80 and the negative percentage of evaluations was 0.8%?
CREATE TABLE table_name_23 (evaluation_average__before_april_2009_ VARCHAR, peak_lessons_taught VARCHAR, _percentage_of_negative_evaluations VARCHAR)
SELECT evaluation_average__before_april_2009_ FROM table_name_23 WHERE peak_lessons_taught < 80 AND _percentage_of_negative_evaluations = "0.8%"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_23 (evaluation_average__before_april_2009_ VARCHAR, peak_lessons_taught VARCHAR, _percentage_of_negative_evaluations VARCHAR) Question: What is the mean Evaluation number (before April 2009) when the Peak lessons taught was less than 80 and the negative percentage of evaluations was 0.8%? [/INST] SELECT evaluation_average__before_april_2009_ FROM table_name_23 WHERE peak_lessons_taught < 80 AND _percentage_of_negative_evaluations = "0.8%" </s>