Answer:
$42,000
Step-by-step explanation:
If the transaction has commercial substance, the company should record the new display case at the original cost or fair value of the asset.
The fair value of the asset is $42,000 which involves
= Cash paid for display case + trade-in old display case
= $40,000 + $2,000
= $42,000
All other information which is given is not relevant. Hence, ignored it