Answer: Your answer is D.
Step-by-step explanation:
The maximum amount of times he can go on any ride with the money he has is 11 times because 1.00r is equal to 11 x 1 = 11 then you add 11 + 5 = 16 which is how much money he can spend
each ride -or r in this case- is an extra one dollar.
So the admission to the carnival has to be 5.00
Hope This helps