The rental cost of a car is $30 plus $0.40 per mile traveled. The most luis can spend for rent is $85. What is the domain of the function that represents this situation? A 0<x≤30
B0<x≤85
C 0<x≤137.5
D x>0​

Which one ? is the answer and how to find this answer

Which of the following contains a variable?

James is playing his favorite game at the arcade. after playing the game 33 times, he has 88 tokens remaining. he initially had 2020 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