Explain why a change from 20 to 40 is a 100 percent increase, but a change from 40 to 20 is a 50 percent decrease

Pls will give brainliest and all p.s u can zoom in if u cant see plss

Use the distributive law to multiply. 3(4x + 5y + 6)

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