4) Find the equivalent present worth of a uniform series of $3350 for 8 years, if the payment is made every 6 months, starting 6 years from now. Assume the interest rate is 2% per year, compound continuously. Show the cash flow diagram. 5) A company plans to invest $3 million in new manufacturing equipment that is expected to generate revenue of $380,000 and operating cost of $240,000 each month. The new equipment is estimated to have a $760,000 salvage value after 11 years. What is the future worth of this investment if the company's minimum attractive rate of return is 2% per year, compounded monthly. 6) The cost of building a lift system is $18 million. The lift system will need an annual maintenance cost of $179,000, and the elevators will need to be replaced every 12 years with the estimated cost of $641,000, for an indefinite period of time. What is the capitalized worth of the lift system at an interest rate of 7% per year? Show the cashflow diagram