How much they will charge to replace my MacBook

Hi vemireddy,

Welcome to the Apple Support Communities!

For information on the cost of repair, please contact AppleCare, an Apple Retail Store, or an Apple Authorized Service Provider.

Apple - Support - Service Answer Center

If you own a Mac notebook, and it requires service for any other issue, you still have access to all available service options, but you will be responsible for the cost of service, including parts, labor, shipping (if any), and applicable taxes. AppleCare or your local Apple Authorized Service Provider or Apple Retail Store representative will provide you with an estimate of service costs before receiving your authorization to perform service.

Cheers,

Joe