8) Determine the principle amount Bruce Wayne must invest if $1485 of interest was earned over 10 months with a rate of 0.6%. 9) What is the price of a 91-day, $50 000 Government of Canada treasury bill that yields 1.97% per annum? 10) Calculate the present value of $12 500.00 due in two years and nine months if interest is 7.8% p.a. compounded semi-annually