a) You invest R15 000 at the beginning of the year, for 5 years in a savings account at 15% per annum simple interest. Calculate the future value of your investment

b)The production manager identified a of new machinery that the business will need in 5 years from now. Management does not want to borrow money for the replacement and therefore decides to invest R150 000 per year at 10% per annum for a period of 4 years. Calculate the future value of this investment.