Quick quick, help plzz

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

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°