A granary has two options for a conveyor used in the manufacture of grain for transporting, filling, or emptying. One conveyor can be purchased and installed for $45,000 with $4,500 salvage value after 16 years. The other can be purchased and installed for $120,000 with $4,000 salvage value after 16 years. Operation and maintenance for each is expected to be $21,000 and $18,000 per year, respectively. The granary uses MACRS-GDS depreciation, has a marginal tax rate of 40%, and has a MARR of 9% after taxes. a. Determine which alternative is less costly, based upon comparison of after-tax annual worth.
b. What must the cost of the second (more expensive) conveyor be for there to be no economic advantages between the two?

An attorney came to work on a saturday. when he signed in, he was advised by the morning security guard employed by the building management that he must be out of the building by 5 p.m., when it closes. however, he stayed past 5 p.m. to complete a brief that had to be filed on monday morning. at 5: 15 p.m., the afternoon security guard set the locks on all the doors of the building and left. because she was in a hurry, she did not check the sign-in sheet to make sure that everyone had signed out, contrary to mandatory procedures. when the attorney tried to exit 15 minutes later, he discovered that the doors were all locked and could not be opened from the inside. he used his cell phone to call for , and a supervisor from the building arrived and let him out shortly thereafter. if the attorney sues the building management for false imprisonment, is he likely to win?