Office Equipment Database (6+6+6+7+7+7+8+8 = 55 points): Consider the following relational schema for an office equipment store that sells printers and computers: 3, Company (companyID, name, address, city, state, zipcode) Computer (computer ID, model, laptop, os, speed, ram, harddrive, screen, price) ProduceComputer (companyID, computer ID) Printer (printerID, model, color, price, scanner, wireless) ProducePrinter (companyID, printerID) Express the following queries in Relational Algebra: (a) What company makes the most expensive wireless printer that has a scanner? (b) How many computers does each company make and what is the price of the most expensive machine they produce? (c) Find the name of the company and the model name for all personal computers (non- laptops) that are more than $800 and less than $1200 d) What company only sells computer with a "Windows" operating system? (e) What are the models of the computers that are not made by a company that also (f) What company makes the laptop with the largest ram and what city are they located (g) Which company makes at least 3 different color printers but does not make a laptop (h) For companies in Georgia, which company makes the most unique laptop models (hint: produces printers? in? with a 15-inch screen? use the attribute model in Computer)