Which of the following is incorrect: Multiple Choice The AAR is it is not a rate of return in any meaningful economic sense. EAC can be used to compare two machines, when one is cheaper to buy, but it costs more to operate, and it wears out more quickly. O WACC is the weighted average of the cost of equity and the after-tax cost of debt. O RipOff Inc. allows you to write a check for $117.50 dated 14 days in the future, for which you get $100 today. Assuming there are 365 days in the year, the APR on this loan is around 654%. O O A project that just breaks even on an accounting basis will be negative NPV