Question: please solve 8 I have done 7 7. You have following Relations: a PC1 =( speed 1000)(PC) Product(maker, model, type) PC(model, speed, ram, hd, price)

please solve 8 I have done 7 7. You have following Relations: a PC1 =( speed 1000)(PC) Product(maker, model, type) PC(model, speed, ram, hd, please solve 8 I have done 7

7. You have following Relations: a PC1 =( speed 1000)(PC) Product(maker, model, type) PC(model, speed, ram, hd, price) Laptop(model, speed, ram, hd, screen, price) bLaptop1 =(hd1000) (Laptop) Printer(model, color, type, price) Manufacturer =( maker )( Product Laptop1 ( Product.model = Laptop1.model ) ) What PC models have a speed of at least 1000 ? C To find the model numbers of all color laser printers: o. Which manufacturers make laptops with a hard disk of at ColorLaserPrinters =( type = 'laser' color = 'color') ( Printer) east one giga-byte? ModelNumbers =( model ) (ColorLaserPrinters) . Find the model numbers of all color laser printers. 8. Draw the expression tree for the expression you make for 7a,7b and 7c

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