Because of Erick and Angels visit to the resort, Joel found that the wombat population went from 20 to 16 . By what percent did it decrease ?

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James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays