please help with this question

If a certain toxicant has LD50=1mg/kg body mass, LD10=0.5mg/kg body mass, and LD90=1.5mg/kg body mass, which of the following is true: An animal that weighed 2kg and ingested 3mg would definitely die. An animal weighing 5kg that ingested 4mg would probably die. If 80 animals that each weighed 7kg ingested 7mg each, about 40 of them would die. An animal that weighed 4kg and ingested 2mg would definitely survive