All the angles are different. And It's concave.
your answer is B (0,4), in the first equation you have to greater than -2, 4 is, 0+4=4.
so B is your answer
I believe it’s $34,480
First take 40,000 and find 2.3% of that and multiply that by the time difference (6 years) which would be $5520 so subtract that from its 2019 value and you get $34,480
Im sorry but is there more to the question