Using SQL queries, provide answers to all 5 questions about Dillards stores below. Please submit your SQL codes only (10 points each). 1. Calculate the average transaction dollar amount of items that are sold on January 1st , 2014. 2. Calculate the number of returned items on February 14th, 2014. 3. Calculate the total dollar amount of online sales (Store # 698) between 1/1/2014 and 2/14/2014 (including both dates). 4. Identify the customer number with most frequent purchase transactions between 1/1/2014 and 2/14/2014 (including both dates). 5. Identify the store number with highest number of returns between 1/1/2014 and 2/14/2014 (including both dates).