ILL MARK AS BRAINLIEST Are the following lines parallel, perpendicular, or neither? Line 1 (2,8) (-3,-7)
Line 2 (3,0) (12, -3)

a) no answer text provided
b) perpendicular
c) neither
d) parallel

b perpendicular

Step-by-step explanation:

all that is needed to do is the Y2 - y1 / X2 - X1 formula and then compare the two slopes making sure they are inverse opposites

Line 1)      -7 -8 / -3 -2  X= 3X

Line 2)      -3 - 0 / 12 - 3  X = -1 / 3X

Because they are inverse opposites of each other they are perpendicular had they had the exact same slopes they would have been parallels.  

18

Step-by-step explanation:

Look at the 90 degree angle and see it is cut so what you want to do is take the known number of the angle 90 and the part given 72 and subtract so 90-72 =18

Hope This Helps :)