How do I simplify 25.3(2.4)

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

True or false look at the picture pls : /

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142