Solve using gradient formula!

(30 points) The Fly by Night Express Delivery Corporation is in need of constructing a new maintenance hangar for its airplane fleet. The site may be purchased for $400,000. Construction will take one year a cost $1,000,000.00 other half upon completion. Over the following 10 years, that is years 2 through 11, costs to operate the facility are estimated to be $350,000 the first year and increase by $75,000 each of the subsequent years with costs payable at the end of each year. Taxes are expected to be $10,000 per year payable at the end of each year. It is expected that at the end of the 11th year the facility will be sold for $2,000,000. Assuming a nominal interest rate of 10%, what is the present worth of the proposedproject? 7. payable to the contractor in two installments-one half at the start of the contract and the