24. Write a vector (-3, 22, -3) as a linear combination of the vectors (-1, 2, 3) and (0, 4, -3). [5 Marks] 25. A plane is steering at $83E at an air speed of 550km/h. The wind is from N70E at 85km/h. Find the ground velocity of the plane to 1 decimal and include a proper diagram. [5 Marks] 26. Given the points of a triangle; A (3, 5, -1), B (7, 4, 2) and C (-3, -4, -7). Determine the area of the triangle. [4 Marks]