Write a proportion. Then solve it

It takes six cups to make 30 servings of rice. How many cups of rice does it take for 10 servings?

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=