Would you show me how to find APR and EAR without using excel? Thank you

11. A 20-year maturity bond with par value of $1,000 makes semiannual coupon payments at a coupon rate of 8%. Find the bond equivalent and effective annual yield to maturity of the bond if the bond price is: a. $950 b. $1,000 c. $1,050 11. A 20-year maturity bond with par value of $1,000 makes semiannual coupon payments at a coupon rate of 8%. Find the bond equivalent and effective annual yield to maturity of the bond if the bond price is: a. $950 b. $1,000 c. $1,050