Consider a bond with semiannual coupon payments of $50 and a principal payment of $1,000 in 10 years. Assume a flat yield curve with an 7% vied to maturity: If the yield curve remains unchanged, what is the bond's duration in 9 years? A. 1.00 year B. 1.014 year C. 0.995 year D. 0.983 year E. 0.977 year

For a 8-year discount bond with a face value of $1.000. if the interest rate changes from 8% to 12%, what's the new price of the bond using Duration with Convexity? A. $404.87 B. 405.87 C. 406.87 D. 407.87 E. 408.87