Find the exterior angle of the triangle #9

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

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