Assume a machine costs $280,000 and lasts six years before it is replaced. The operating cost is $30,600 a year. Ignore taxes. What is the equivalent annual cost if the required rate of return is 13.4 percent? (Hint: the EAC should account for both investment and annual operating costs) $103,701.98 $101,424.83 $99,147.68 $96,870.53 $94,593.38