Q. Delilah, does not return with wood pulp, but brings back three contracts. Acting within scope of her authority, she contracted with Evon, who knew your identity at time; Felipe, who knew that Delilah was acting on behalf of someone but not whom; also Giorgio, who did not know that Delilah was acting on anyone's behalf. For which contracts, if any, are you liable? For which contracts, if any, is Delilah liable? Explain.