use where clause in laravel 4 code example

Example 1: laravel with and where

$projects = Project::whereHas('projectOffers', function ($offer) {
            $offer->where('teacher_id', "Ahmed");
            $offer->where('status_id', "Accepted");
        })->where('status_id', "inprogress")->get();

Example 2: laravel where and where

Table::where('Column', Value)->where('NewColumn', Value)->get();