Can someone please answer this for me ?

It is all one question it just doesnt fit in one picture. Thank you!!

5. Bond yields Coupon payments are fixed, but the percentage return that investors receive varies based on market conditions. This percentage return is referred to as the bond's yield Yield to maturity (YTM) is the rate of return expected from a bond held until its maturity date. However, the YTM equats the expected rate of return under certain assumptions. Which of the following is one of those assumptions? The probability of default is zero The bond is callable. Consider the case of Blanche Inc.: Blanche Inc. 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 $1,220.35. However, Blanche Inc. may call the bonds in eight years at a call price of $1,060. What are the YTM and the yield call (YTC) on Blanche Inc.'s bonds? Value YTM YTC If interest rates are expected to remain constant, what is the best estimate of the remaining life left for Blanche Inc's bonds? 18 years If interest rates are expected to remain constant, what is the best estimate of the remaining life left for Blanche Inc.'s bonds? 18 years 5 years O 10 years O 8 years If Blanche Inc. issued new bonds today, what coupon rate must the bonds have to be issued at par