What should be the prices of the following preferred stocks if comparable securities yield $8$ percent? Use Appendix B and Appendix D to answer the questions. Round your answers to the nearest cent.

a$.$ MN$,$ Inc., $$5$ preferred $($ $$90$ par$)$

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b$.CH,$ Inc., $$5$ preferred $($ $$90$ par$)$ with mandatory retirement after $5$ years

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