Write SQL statements for the following queries. 1) Retrieve the first and last names and salaries of customers whose age is 30 and whose salary is less than 100,000 . 2) Retrieve the first and last names of customers who purchased the 'Ozark Trail Aluminum Pliers' product. 3) 'Lakeyia Henriques' purchased the 'Maxforce Fly Spot Bait - 16 Oz.' product. Retrieve the purchase date. 4) Retrieve the first and last names of employees who have no supervisor. 5) Retrieve the ids and the first and last names of customers who never purchased an item. 6) How many items did 'Ramona Higbee' (i.e., customer) purchase from 'Gisela Meunier' (i.e., employee) ? 7) Retrieve addresses of stores which have the 'Venum Classic Snapback Hat' product. 8) Retrieve the ids of products purchased by 'Trimaine Kaplan' (i.e., customer). 9) Retrieve the ids and the first and last names of customers whose age is greater than 83 and who purchased an item between '2023/02/27' and '2023/02/28'. 10) Retrieve the number of items for the 'Hot Cocoa' product