brakes have a rapping noise from the dash it goes away when I put the brakes?

Hi,

Replacing front brakes isn't too hard to do. You can expect to get approximately 25,000 miles from a set of pads, but that is based on the driver.

First, here is a link that shows how to replace brakes and rotors in general. You can use this as a guide.

https://www.2carpros.com/articles/how-to-replace-front-brake-pads-and-rotors-fwd

Here are the directions specific to your vehicle. The attached pics correlate with the directions.