Respuesta :
Answer:
i would say the rate change is by 10 dollars.
Step-by-step explanation:
you did not provide and answer choices so.
Answer:
5 dollars is the change of rate.
Step-by-step explanation:he has to pay 15 dollars to join but then he has to pay 10 dollars a month so the change is 5 dollars it changes from 15 dollars to 10 dollars so 15-10=5 so 5 is the awnser.