Answer:
x = 52
Step-by-step explanation:
28 + x - 4 + 2x = 180
Simplify the left side
3x + 24 = 180
Subtract 24 from each side
3x = 156
Divide each side by 3
x = 52
The square root of 72 is rational because the answer can be a real number.
I'm assuming you meant does y=12x pass through those coordinates, and if that's the case, then the answer is no.
Hope that helps :)