please explain

Consider the case of Eades Corp.: Eades Corp. has 9% annual coupon bonds that are callable and have 18 years left until maturity. The bonds have a par value of $1,000, and their current market price is $1,070,35. However, Eades Corp, may call the bonds in elght years at a call price of $1,060. What are the YTM and the yield to call (VTC) on Eades Corp.'s bonds? If interest rates are expected to remain constant, what is the best estimate of the remaining life left for Eades Corp.'s bonds? 10 years: 13 years 18 years 8 years If Eades Corp. issued new bonds today, what coupon rate must the bonds have to be issued at par