Can someone me with this question?

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

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

Anyone know? is appreciated! will mark brainliest if correct!