The answer is "token economy".
A token economy is an arrangement of possibility of administration in light of the methodical fortification of target conduct. The reinforcers are images or "tokens" that can be traded for different reinforcers. Marbles are being utilized as tokens that would then be able to exchanged for a coveted protest—the computer game.
One advantage that the Constitution had over the Articles of Confederation was:
D. Foreign power was centralized under the federal government.
The coordinates of the fourth vertex of the rectangle is : (B). (3, 6)
<h3>Meaning of Coordinates</h3>
A coordinate can be defined a value that describes an object location in a grid or Cartesian system
A coordinate in this case helps us to trace the points of the rectangle of interest.
In conclusion, The coordinates of the fourth vertex of the rectangle is : (B). (3, 6)
Learn more about coordinates: brainly.com/question/3447129
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