Ken decides to start saving for a new car after depositing his inheritance. He adds to his saving by depositing a set amount in this account every month. After 12 months he has a total of $15,600 and after 20 months he has $22,000 in his account. (a) Determine the dependent and independent quantities and assign a suitable symbol for (1 marks) each d dependent indlependent (b) amount deposited number of months Assume there is a linear relationship between total amount in Ken's account and number of months, develop algebraically, the linear equation, which shows this relationship. (3 marks)