help please with this

Bau Long-Haul, Inc., is considering the purchase of a tractor-trailer that would cost $459,153, would have a useful life of 7 years, and would have no salvage value. The tractor-trailer would be used in the company's hauling business, resulting in additional net cash inflows of $76,500 per year. The internal rate of return on the investment in the tractor-trailer is closest to (Ignore income taxes.): Click here to view Exhibit 78-1 and Exhibit 78-2, to determine the appropriate discount factor(s) using the tables provided. Multiple Choice O 49% O 3% O 6% O 1%Navern Corporation manufactures and sells custom home elevators. From the time an order is placed until the time the elevator is installed in the customer's home averages 44 days. This 44 days is spent as follows: Wait time 12 days Inspection time 12 days Process time 5 days Move time 6 days Queue time 9 days What is Navern's manufacturing cycle efficiency (MCE) for its elevators? Multiple Choice O 38.6%% O 15.6% O 61.4% O 59.1%Babak Industries is a division of a major corporation. Last year the division had total sales of $20,560,000, net operating income of $1,887,760, and average operating assets of $7,000,000. The division's turnover is closest to: Multiple Choice O 2.94 O 0.27 O 2.16 O 10.89