3-dc75-4288-9149-c468460857f4/2/TPP7181%20Ass%203G.pdf + v 6. Rearrange the following equations to make y the subject. (a) a = 5y + 4 8 (b) k = 2y +15 - 4y (c) t = V2y2 -5 (6 marks) 7. Given that 2t - 3 = 5t + 4 (a) Solve for t. (b) Prove your solution is correct. (3 marks) 8. Find the gradient and y intercept of the following straight lines: (a) y +2x = 12 (b) 2y = 4x + 3 (4 marks) 9. (a) Expand 2r(x2 - 4x + 3) (b) Factorise Arly + 8ry (4 marks) 10. The volume of a cylindrical water tank is given by the formula V = mr2h where V is the volume in cubic metres, Tis a constant approximately equal to 3.14, r is the radius (metres) and h is the height (metres) of the tank. What is the radius of the tank if its volume is 5 m and its height is 1.5 metres. (3 marks) O w X