We know that all three angles in a triangle must add to 180 degrees so we can use this fact to find the measure of the missing angles.
180-57-101= 22 degrees
180-72-72=36 degrees
180-x-20=160-x degrees
110? It's a supplementary angle.
If your question is, "how much had Mr. Kork paid for the car?"
(8,400-200)/.4=$20,500
12 *12 = 144
Therefore 12^2 = 144
