2. You plan to invest 10,000 in the shares of a company. (a) If the value of the shares increases by 5 per cent a year, what will be the value of the shares in 20 years? (b) If the value of the shares increases by 15 per cent a year, what will be the value of the shares in 20 years? 3. How long will it take you to double your money if you invest it at: (a) 5 per cent? (b) 15 per cent