250 200 150 100 50 PA​

It's going down by 50

hope this helps

have a good day :)

Step-by-step explanation:

n=200

Step-by-step explanation:

It's going down by 50

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.