1. Toby borrow 850 000 at 12% per year compounded continuously. As- suming no payment was done until the settlement date: (a) Determine the amount Toby will pay if he choose to settle the borrowed amount in year 3. [3] (b) Use excel to illustrate the amount Toby have to pay if he choose to settle the borrowed amount in any of the first 10 years. Clearly present all your working and formulas in excel, and attache the ex- cel file when submitting, (12)