3 errors do not know how to fix...

My script is this: using UnityEngine; using System.Collections;

[RequireComponent (typeof(BoxCollider))] public class Playerphysics : MonoBehaviour {

 public LayerMask collisionMask;
 private BoxCollider collider;
 private Vector3 s;
 private Vector3 c;

 private float skin = .005f;

 [HideInInspector]
 public bool grounded;

 Ray ray;
 RaycastHit hit;

 void Start() {
     collider = GetComponent<BoxCollider> ();
     s = collider.size;
     c = collider.center;
 }

 public void Move(Vector2 amountToMove) {

     float deltaY = amountToMove.y;
     float deltaX = amountToMove.x;
     Vector2 p = transform.position;

     for (int i = 0; i <=3; i ++) {
         float dir = Mathf.Sign(deltaY);
         float x = (p.x + c.x -s.x/2) + s.x/2 * i;//left, centre and then rightmost point of collider
         float y = p.y + c.y + s.y/2 * dir;//bottome of collider

         ray = new Ray(new Vector2(x,y), new Vector2(0,dir));

         if (Physics.Raycast(Ray,out hit,Mathf.Abs(deltaY),collisionMask)) {
             // Get Distance beetween player and gorund
             float dst = Vector3.Distance (ray.origin, hit.point);

             //Stop player's downwards movement after coming within skin with of a collider
             if (dst > skin) {
             }
                 else {
                 deltaY = 0;
     }
             grounded = true;
             break;

             }

             }



     Vector2 finalTransform = new Vector2(deltaX,deltaY);

     transform.Translate(finalTransform);
 }

}

The errors say: 1) Argument 1 cannot convert "object" expression to type "UnityEngine.Vector3" 2)The best overloaded mthed match for"UnityEngine.Physics.Raycast(UnityEngine.Vector3, Unity Engine.Vecotr 3, float, int)" has some invalid arguments. 3) Expression dentoes a "type", where a "variable", "value" or "method group" was expected