How do i convert Vector3 into float?

Question

I get an error saying: cannot convert from 'double to 'float'

when i try to do add

float scale = 0.4;

and set the vector 3 values to 'scale' i get an error as well

                    {
                    //Sets ramstick sprite when spawned and scales it down
                    Instance.transform.localScale = new Vector3(0.5, 0.5, 0.5);
                    Instance.GetComponent<SpriteRenderer>().sprite = ModAPI.LoadSprite("sprites/ramstick.png");

                    Instance.FixColliders();
                }