I'm kinda confused on where to begin

Tutorial 1: 10% (diff 1- 604, 612, 626, a) Differentiate y = (4x - 5)6 b) Differentiate y = y = eww c) Differentiate y = In cos 3x d) If 2x3 + 2y + y? -4x-3y + 6 = 0, find dy/dx and d'y/dx? at x = 3 and y = 2 e) Find the equations of the tangent and normal to the curve: x2 + yz + 3xy -11 = 0, at the point x = 1 and y = 2