Midpoint of (-1,-6) and (-7,-2)

(-4, -4).

Step-by-step explanation:

In order to calculate the midpoint coordinates, we need to calculate the mean value of the x-coordinates and the mean value of the y-coordinates.

So we have:

M(x)=(-1+(-7))/(2)=(-8)/(2)=-4

M(y)=(-6+(-2))/(2)=(-8)/(2)=-4

Therefore the midpoint coordinates are (-4, -4).

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

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