SOLVED ALL 20 SQL questions.
query 1 :
query 2:
SELECT b.Brand_ID, b.Brand_Name, Format(Avg(p.Prod_Price), “Currency”) AS Average_Price
FROM LGPRODUCT AS p INNER JOIN LGBRAND AS b ON p.Brand_ID = b.Brand_ID
GROUP BY b.Brand_ID, b.Brand_Name
ORDER BY b.Brand_Name;