2-21x+28
-21x +3
Hope it helps
Missing check = $412.20 - $331.60 = $80.6
Hope it helps!
Lines are perpendicular if the slope of one is the negative reciprocal of the other. In this case the slopes are -8/3 and 8/3, so while negative they are not reciprocal. So no, the two lines intersect but are not perpendicular.
Well, 1x5=5 and 2x5=10 so 3x5=15
3x + 2y = 12
(x, y) = (__, 0)
3x + (2 x 0) = 12
3x + 0 = 12
3x = 12
x = 4
(4, 0)