I have a few questions that I'm not sure how to approach, or why it's wrong (or what is the correct answer for that matter.

To begin:

I have no idea why this I got wrong. I'm assuming the answer is the opposite? A little help?

The first one is confusing, albeit 1/2 credit.

The second one is a computational error, but I'm not sure how that was achieved.

Hint on how this answer was achieved?

Thanks, I appreciate all help.