Answer:18.6
Step-by-step explanation: 40 divided by 100=0.4, 0.4 x 31= 12.4, 31-12.4=18.6
Walls = Plane
Intersection = line
Corner = Point
-5c^2-3c+4 This polynomial is in standard form, now, and the leading coefficient is 5, because it is the coefficient of the first term. Degree is 2, due to -5c^2.
The one in the top left corner
