I am confused on these four, if someone could share their answer you will be a lifesaver.

9. The yield to maturity on a $1,000 face value bond is 4.5%. The coupon rate on this same bond is 3%. Is the bond trading at a premium, a discount, or par? 10. A 4-year annual coupon bond trades for $1,037, has a face value of $1,000 and a coupon rate of 4%. What is the yield to maturity? 11. The yield to maturity on a $1,000 face value bond is 3.5%. The bond pays annual coupons of $35. Is the bond trading at a premium, a discount, or par? 12. A risk-free 3-year annual coupon bond has a 5% coupon rate, a face value of $1,000, and trades for $950. The 1- year spot rate is 5%. The 2-year spot rate is 5.25%. The 3-year spot rate is 5.5%. What is the yield to maturity? What is your trading strategy