You enter a store and discover that a TV set that normally sells for 600 is 'on sale' for 20% off. How much is the cost of the TV 'on sale'? (3 marks) (i) If a test consists of 25 questions and 21 of the questions were answered correctly, what is the percentage of the correct answers (in %)? (3 marks) (i) Digital Camera costs 225 including VAT. VAT is at 17.5%. What was the cost before the tax was added? (4 marks) (iv) Draw a histogram based on the table below. Age Frequency 0-9 3 10-19 12 20-29 23 30-39 43 40-49 42 50-59 27 60-69 23 70-79 18 80-89 3 90-99 1