writing queries in mvc

public ActionResult Edit(Hotel hotel)
        {
            if (ModelState.IsValid)
            {
                hotel.Status = 1;
                db.Entry(hotel).State = EntityState.Modified;

                 var hFacilities = Request["HotelFesilityId"].Split(',');
                foreach (var hf in hFacilities)
                {
                    var hfid = Convert.ToInt32(hf);
                    //here i want to check  hfid is exising in the table
                    //var hotelfaciliti = db.HotelFesilities.Find(hfid);
                    var a= db.HotelFesilities.Where(id==hfid).Count();
                    if(a>0)
                    {
                        //Do task 1
                    }
                    else
                    {
                        //Do tast for else
                    }    
                    hotel.HotelFesilities.Add(hotelfaciliti);
                }
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            ViewBag.HotelCategoryHotelCategoryId = new SelectList(db.HotelCategories, "HotelCategoryId", "CategoryName", hotel.HotelCategoryHotelCategoryId);
            return View(hotel);
        }