Angle A measures, 123 degrees. What is it's alternate interior angle measure? you will get brainlist

Landon wrote that 3−2.6=4. which statement about his answer is true?

What is always true when two whole numbers are subtracted?

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32