Yes (with service pack 6 or later)
For users with laptops and desktops running Windows XP, Windows Vista and Windows 7, a digital upgrade to Windows 8 Pro will cost $40 if downloaded before Jan. 31, 2013, according to a fresh post on the Microsoft Windows blog. That's the price to download Windows 8 Pro and install it without an actual physical copy of the download; Microsoft will also mail you a DVD version of Windows 8 for backup purposes for an extra $15 plus shipping and handling. Upgrades to Pro will also have the option to add the Windows Media Center program to their download for free. If buying over the Internet isn't your thing, customers can choose to purchase Windows 8 Pro in stores for $70. These prices are apparently only good through Jan. 31 and will increase after that date. *Info from Huffington Post
Poulan Pro PPBP300 40:1
You get more maximum ammo when you upgrade the gun. The ak74u usually has 20 ammo, and gets 40 when its upgraded.
Sometimes 10 or 40
Normally 20 but you can upgrade to 30 then 40.
A 2 GB memory upgrade is very cheap. Usually around 30 or 40 bucks
you have to destroy 40 killstreak rewards
100-450 USD
you play 24/7 and die at the age of 40
5 hours
Warriors can upgrade from mail to plate armor at level 40.
The stores that sell replacement shelves for computer workstation under $40 are Target, London Drugs, Canadian Tire, Home Depot, Super Store and many more.