1. Determine the future values utilizing a time preference rate of 9 per cent when: (1) The future value of $15,000 invested now for a period of four years. (i) The future value at the end of five years of an investment of 6,000 now and of an investment of t6,000 one year from now. (i) The future value at the end of eight years of an annual deposit of 18,000 each year. (iv) The future value at the end of eight years of annual deposit of $18,000 at the beginning of each year. (v) The future values at the end of eight years of a deposit of 18,000 at the end of the first four years and withdrawal of 12,000 per year at the end of year five through seven.