Question 4 multiple choice Worth pants) (02 04 MC) Your friend has $100 when he goes to the fair He spends $10 to enter the fast and $20 on food Rides at the far cast 12 per ride who can be much money he has left over after x rides? f(x) = -2x + 70
f(x) = 2x + 70
f(x) = -2x - 70
f(x) = -30x + $100