Answer:
Coin.
Explanation:
Thomas Jefferson was one of the many anti-federalists who held the belief that power should not be vested on a single person but on multiple people. He created and introduced the decimal-based currency system for the better exchange system for business or any transaction.
The type of money system that he designed and started was the coinage system or the use of the coin in any system of transaction. Thus, the correct answer is COIN.
The answer is "variable-ratio schedule".
In operant conditioning, a variable-ratio plan refers to a calendar of fortification where a reaction is strengthened after an eccentric number of reactions. This timetable makes an enduring, high rate of reacting. Betting and lottery diversions are great cases of a reward in view of a variable ratio schedule.
it was about the twin towers getting collapsed it was basically about 9 11
