Answer:
A = x^2 - x + xy - y
P = 4x + 2y - 2
Step-by-step explanation:

I hope that is useful for you :)
The answer is y = +8
Explanation:
Since they tell us what x equals (3), let's plug that into the equation
y = (3) + 5
Now, we can just add 3 and 5 together, which we get 8
y = +8
Have u been doing anything with Pythagorean theorem? i belive that is what u have to do