Answer:
This is a contract law
Step-by-step explanation:
(a) If schmidt dies before Barry's acceptance and the time he accepts, Barry is unaware of schmidt's death, then the contract is voidable.
(b) if the night before acceptance, fires destroys the equipment, then the contract is invalid, as there is no consideration
(c) If Barry pays less than the agreed amount that means there is no offer and acceptance, hence the contract cannot be enforced.