12. Shaun has an investment portfolio as follows. KIT . . A $5000 GIC, purchased 9 years ago, that earns 2.6% compounded annually. A $2000 CSB, purchased 4 years ago, that earns 3.1% compounded semi-annually. A savings account at 1.4%, compounded weekly, into which he has been making weekly deposits for $15 for the past 5 years. (a) How much money did Shaun invest altogether? (1 mark) (b) What is the value of his portfolio today? (3 marks) chior (c) Calculate his rate of return. (1 mark)