Can someone please help me

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 t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

Multiplying fractions by whole number 5 x 1/3=?

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.