At the beginning of 2019, Metatec Inc. acquired Ellison Technology Corporation for $520 million. In addition to cash, receivables, and inventory, the following assets and their fair values were also acquired:

Plant and equipment (depreciable assets)	$	142	million
Patent		32	million
Goodwill		100	million

The plant and equipment are depreciated over a 10-year useful life on a straight-line basis. There is no estimated residual value. The patent is estimated to have a 5-year useful life, no residual value, and is amortized using the straight-line method. At the end of 2021, a change in business climate indicated to management that the assets of Ellison might be impaired. The following amounts have been determined:

Plant and equipment:
Undiscounted sum of future cash flows	$	72	million
Fair value		52	million
Patent:
Undiscounted sum of future cash flows	$	19	million
Fair value		12	million
Goodwill:
Fair value of Ellison Technology Corporation	$	362	million
Fair value of Ellison's net assets (excluding goodwill)		310	million
Book value of Ellison's net assets (including goodwill)		390	million*

^*After first recording any impairment losses on plant and equipment and the patent.

Required:

1. Compute the book value of the plant and equipment and patent at the end of 2021. 4. Determine the amount of any impairment loss to be recorded, if any, for the three assets.