CHECK IMAGE Help me out pretty please

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

Which table represents a linear function? i'll give brainliest to first answer ^'^

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)