Answer:
427
Step-by-step explanation:
Mike's weight is 215 twice that would be 430. Subtract three and , that 'll give you 427
You can conclude that the sides are parallel because the slope of the opposites are the same. (Second option).
You can conclude that the polygon is a rectangle since it has 4 90º angles, and 4 sides, each one parallel to the other and of the same lenght as it's parallel. (Last option).
Answer:

Hope it helped,
Happy homework/ study/ exam!
1-(-8)
1+8 (add a line change the sign)
=9
Answer:
y - 6 = -7(x + 8)
Step-by-step explanation:
Slope: m = (y2-y1)/(x2-x1) = (6 - -1)/(-8 - -7) = (6 + 1)/(-8 + 7) = 7/-1 = -7
Point-slope form: y - 6 = -7(x - -8)
=> y - 6 = -7(x + 8)