could someone help with this question, thank you. I have attached an image.
4(22 points) Consider the points P-(1,0,-2), Q = (2,1,5) and R-(-4,1,3) in three-dimensional space (a) Find a vector perpendicular to the plane, n, that contains the points P, Q, and R (b) Find an equation for the plane that contains P, Q, and R (c) Find the area of the triangle PQR