Final answer:
The price at which the bonds sold is $717.88 million.
Step-by-step explanation:
To calculate the price at which the bonds sold, we can use the present value formula. The present value of a bond is the sum of the present values of its future cash flows, discounted at the market yield. In this case, the bond pays semiannual interest of 8% on a $100 million face amount, or $4 million per year.
With a 10-year maturity, there will be 20 interest payments. Using the present value annuity payment factor of 11.470, we can calculate the present value of the interest payments as $45.88 million.
The present value of the face amount, using the present value factor for a single payment of 6.72, is $672 million.
Therefore, the price at which the bonds sold is the sum of the present values of the interest payments and the face amount, which is $45.88 million + $672 million = $717.88 million.