a. Gouldy invests $4,500 in an account that pays 4% simple interest. How much money will she have at the end of eight years. (5 marks)
b. Gouldy then goes on to invests $3,000 in an account that pays 5% simple interest. How much more could she have earned over a 7-year period if the interest had compounded annually? (5 marks)
