Exon chemical made a preliminary sale agreement with Texaco for $100 million (at MARR = 15%) in hopes of selling it 7 years from now. Exon estimates a net cash flow decrease with an arithmetic gradient of 10 million per year starting in year 5. There is expected to be a net loss of 7 million annually starting at the end of year 1. What should be Exon's minimum selling price in 7 years