Answer:
Mainline should recognize a revenue of $32 million in 2012.
Step-by-step explanation:
percentage-of-completion method:
Total Expenses = $60 million
Expenses during the Year 2012 = $24 million
Percentage of complition = 24/60
= 40%
Revenue can be recognised = $80 million*40%
= $32 million
Therefore, Mainline should recognize a revenue of $32 million in 2012.