92. 1251. Average Selling PriceWITH SalesSummary AS ( SELECT u.product_id, u.units, SUM(p.price * u.units) AS total FROM UnitsSold u JOIN Prices p ON u.product_id = p.product_id WHERE u.purchase_date BETWEEN p.start_date AND p.end_date)SELECT p.product_id, ROUND(COALESCE(SUM(s.total) / SUM(s.units), 0), 2) AS average_priceFROM Prices pLEFT JOIN SalesSummar..