If 1 book cost $7, how much will 5 books cost?​

Nneeedd 1.find the residual if you know the actual number is 5.2 and the predicted value is 4.8

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

Can you me find the missing length. i attached an image.