Jim thinks that he will drive his minivan 9000 miles per year.  Determine the breakeven cost of gasoline between the 1998 model and the newer model.  The study period remains 3 years with a MARR = 6% and investment costs for the 1998 model = $2,800 and $4,000 for the newer model.   1998 gets 20 miles per gallon.   Newer gets 26 miles per gallon.