Can I bring my iPad that I bought new on line to apple store to get started working

Maybe try doing it yourself:

Set up your iPhone, iPad, or iPod touch - Apple Support

Turn on and set up iPad - Apple Support

... but if you can't get it working yourself, you can call Apple for help (there are phone numbers on the Apple web site, you can start here https://support.apple.com ). You can also bring the new device to an Apple Store, they will help you, of course you need to find an Apple Store that is open, some are open now, some are still closed.