the city of san jose replace a number of its concrete mixer trucks with new trucks.it has recived two bids and has evalyated closely the performance characteristics of the various trucks. the rockbuilt truck whicj cost $74,000 is the top of the line equipment.the truck has a life of 8 years,assuming that the engine is rebuilt in the fifth years,maintannace cost are expected to be $4,000 a year. at the end of years the truck will have an estimated scrap value of $9,000.a bid from building truck inc is $59,000 a truck. maintainance cost for the truck will be higher. in the first year they are expected to increase by $1,500 a year through the eight year. in the fourth year the engine will need to be rebuilt and this will cost the company $15,000 in addition to maintenance cost in that year.at the end of the eight years the bulldog truck will have an estimated a scrap value of $5,000. a). if the city of san jose's opportsolve.unity cost of funds is 8%, which bid should it accept? ignore tax consideration, because the city pays no tax. b). if it,s opportunity cost were 15%,would your answer change?