PLEASE HELP! OFFERING LOTS OF POINTS! ALL ANSWERS NEEDED

1. x=1, y=1

2. x=4, y=3

3. x=3, y=-2

Hope this helps! please consider marking it brainliest if it's right : )

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.