please do it by handwriting pleas e make sure in clear do 3 of them please

5. Let 'P be the plane with equation .3 = 2.7: 33; + 4. (6 points) (a) Find an equation for the plane parallel to P and through the point (2, 3, 1). (b) Find a unit vector perpendicular to 73. 6. Find the area of the triangle with edges (1, 2, 4), (1, 2, 3), and (2, 3, 1). (8 points) EC. A woman walks due west on the deck of a ship at 5 km/h. The ship is moving north at a speed of 30 km / h. Find the speed and direction of the woman relative to the surface of the water