In the Canadian province of Alberta, the epicenter of a boom in the production of bitumen from oil sands, senior geoscientists saw a 14.5% rise in salary this year, to $231,000. When you include overtime, truck drivers in the province are earning up to $170,000.
The System Preferences application is found in your Applications folder and is also available at any time from the Apple menu at the top-left of the screen (click the Apple logo). It may also be in your Dock at the bottom of the screen - the icon is a set of interlinked cogs, like the image above.
Service times often depend on the nature of the issue and the availability of service parts at the service location. Be sure to ask how long service will take when you set up service with Apple's technical support agents or deliver your MacBook Pro for service to an AASP or the Apple Store.