QUESTION 2 (14 MARKS) ^-(3) -5), write down, if possible, the product AB. John is twice as old as Mary. Five years ago, John was three times as old as Mary. Let John's present age be x and Mary's present age be y. 2.2.1 Write down the two equations that represent the given information in their simplest forms. (4 marks) (6 marks) 2.1 2.2 If A = and B=(-2 2.2.2 Use Cramer's rule to determine the present ages of John and Mary (4 marks)