Answer:
Option D is correct because a penalty clause is excessive harm mitigation charge which is written in the contract so according to the law in case of default of one party the other party must be only compensated for the damage. So in this case Evan has used a penalty clause to enforce Drew to sell him his house. If Drew wants to default then he will have to compensate for the demages to Evan due to his default.
Answer:
We sale 86 units in europe and 9 un the US to maximize revenue
Explanation:
Being revenue:
Qunatity EU x Price EU + Quantity US x Price US
we want to maximize this function:

givne the constrain Qe + Qus = 95
we solve using excel solver
Europe US Total
1 Quantity 86 9 95
2 Price 5.7 11
3 Revenue 490.2 99 589.2
we maximize D3 changing cells B2 and C2
Answer:
B. a fixed-price contract.
Explanation:
"A fixed price contract places minimum administrative burden on the contracting parties, but subjects the contractor to the maximum risk arising from full responsibility for all cost escalations. Also called firm price contract."
Mr. Plow couldn't come back to Springfield because he took full responsability for all cost escalations.
Reference: WebFinance Inc. “What Is Fixed Price Contract? Definition and Meaning.” BusinessDictionary.com, 2019