$4$ On June $30,2024,$ Gunderson Electronics issued $8\%$ stated rate bonds with a face amount of $$300$ million. The bonds mature on June $30,2041(20$ years$).$

The market rate of interest for similar bond issues was $10\%(5\%$ semiannual rate$).$ Interest is paid semiannually $(4\%)$ on June $30$ and December $31,$ beginning on December $31,2024.$

a$.,$ Determine the price of the bonds on June $30,2024$

b$.,$ Calculate the interest expense Gunderson reports in $2024$ for these bonds

Please use excel, are my answers correct?