sunshine builders a company that specializes in desgin build proects, is investigating wheter it should buy a D8 dozer for $350,000 or a D9 dozer for $420,000. The life of the D8 is 8 years and that of the D9 is 10 years. Using the annualzied equivelt approach, which dozer would you reccomend to but, if the intrest rate is 8% per year