ENGM 40I: B2 (2018) ASSIGNMENT FOUR Q3. Modified problem 5.40 from page 275 of the textbook, which now reads "You are considering a purchase of a dump truck. The truck will cost $45,000 and have an operating and maintenance cost that starts at $10,000 the first year and increases by $2,500 per year. The salvage value at the end of five years is $9,000. The interest rate is 14%. What is the equivalent annual cost of owning and operating the truck