Fort bend county is planning to construct a dam some tens of miles away from the grand mission recreation center to facilitate fishing in the el rehobatha river basin and power generation. the first cost for the dam will amount to $8,500,000. annual maintenance and repairs will amount to s35,000 for the first five years, to $40,000 for each year in the next ten years, and to $45,000 per year for the next five years. at the end of the 20h year, $30,000 is estimated to be deposited into fort bend county account as tax credits earned for its environmental compliance in the construction and operation of the dam. in addition a major overhaul costing $650,000 will be required at the end of the tenth year. use an interest rate of 8% and a) determine the engineering economy symbols and their value for each option. b) construct the cash flow diagram c) cakulate the capital recovery for the project d) determine the total annual worth for the project e) what is the present worth of this project