please help with this financial accounting problem

Issue Price of a Bond Conner Enterprises issued $180,000 of 10%, 5-year bonds with interest payable semiannually. Determine the issue price if the bonds are priced to yield (a) 10%, (b) 8%, and (c) 12% Use financial calculator or Excel to calculate answers. Round answers to the nearest whole number. 145,883 X a.) X b.) 158,439 X 134,580 c.)