Help pls this is my first question on here and I need help with this pls. I will give you the brainliest and a thanks :)))

Find x to the nearest hundredth place

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

With alll of except for the 2 that i did already