Answer: 3, I believe.
Explanation:
It’s a little confusing, but since there are 9 people in <u>TOTAL</u> and only 3 prizes, there can only be 3 winners. You are being asked how many possible ways there are for you and your mother to gain first and second place respectively. Therefore, I believe it is 3. However, if it is not 3, then there is only one.
"Why did Leonard decided not to go to the lecture?" is a a question because it is asking why, therefore it should have the question mark.
Can you provide the story, the question is out of context.
This question is for you not for other people. You're the one with memories, this is personal information about you. No one online can help you answer that. This is one from you.
the preposition is c) Under