1a) if all the angles are perpendicular, they all =90°
The dimensions on the blueprint of the living room is 3 in by 4 in
133.857142857 I’m not completely sure
h(x) = 5 - 9x
h(8) = 5 - 9×8 ( putting value x = 8)
h(8) = 5 - 72
h(8) = -67
Answer is -67.
