Who was the first person to live?

Adam (biblically speaking)

Step-by-step explanation:

While the topic is controversial, many people believe Adam was the first person to live. However, some believe that Adam and Eve were symbolic of all of humanity, along with their lineage. Some also take the story of Adam and Eve literally. If this were the case, this could aid in explaining why some believe we evolved from apes. Incest relations cause severe deformities. It would make sense, since Cain married his sister, Awan. If Adam and Eve were the only people on earth, and the first, it would cause some serious incestual relationships.  

"if it is my birthday, then it is snowing"

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.