(a) A Quadcopter Drone has been mark-up RM1,500 with a marked-up rate of 60 percent based on selling price. Calculate the selling price of the Quadcopter Drone. (3 marks) (b) A DVD player is marked up 80% based on cost. What is the rate of markup based on selling price. (7 marks) (c) During a clearance sale, an appliance department marked down a microwave oven by 12%, making the selling RM400. At this selling price, the department made a 30% markup on the selling. (i) Find the regular price of the oven. (ii) Find the cost of the oven (iii) Find the markup per cent of the oven at the regular price (10 marks)