Suppose that a company issues the following bonds at different times. Interest on the bonds is paid

Question:

Suppose that a company issues the following bonds at different times. Interest on the bonds is paid annually.
1. $80,000 of 6%, 10-year bonds when the market rate of interest is 7%
2. $60,000 of 8%, 6-year bonds when the market rate of interest is 6%
3. $120,000 of 10%, 5-year bonds when the market rate of interest is 8%
Required
Calculate the issuance price for each bond.