I am stuck on the following three questions and have tried to complete the questions over the past 3 days and am not getting anywhere.

Find the present value on the date of discount (which occurs ten months before maturity at 17%, compounded monthly) of a $3,000, five-year note bearing interest at 12%, compounded quarterly. (5 marks) Calculate the compound discount on a $1,500, two-year note discounted on September 10, 2008, at 13%, compounded daily, if the note was signed on August 6, 2007, and bears interest at 12.5%, compounded semi-annually. (9 marks) Calculate the proceeds of the sale of a $1,700 two-year note earning 12% semiannually if it is discounted at 14% quarterly six months before maturity