Complete the table modeling the inverse of function f

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 tt of tokens james has is a function of gg, the number of games he plays

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Ineed me i stuck and i don’t want to get it wrong