I need help solving and understanding this problem. Please assist. I used my financial calculator but kept getting no solution. Don't know what I did wrong.

Consider a $1,000.00 face value bond with a $65 annual coupon and 15 years until maturity. Calculate the current yield; the coupon rate and the yield to maturity under each of the following cases: (You must show your work, including words as necessary to provide clarity, to qualify for full credit.)

a) The bond is purchased for $945.00

b) The bond is purchased for $1,135.00

c) The bond is purchased for $1,000.00