1. Ntswaki asks to borrow R450 from you and agrees to repay it in 30 days with 2% interest. How much interest will you earn? Assuming year = 350 days. [31 2. Glen deposit R50 in a high-earning account paying 11% compound interest and leave it for three years. What will be the balance on the account at the end of that time? [3] 3. For how long must a sum be deposited in an account paying 13% compound interest in order to triple in value? [3] 4. Julius deposit R19 539.84 for education, how long years) will it to take for him to get R 40 000 if his account earns 4% compounded quarterly [3]