Respuesta :
c = 30m + 70.....m stands for the number of months
ur answer is : B the number of months and the total cost increase, but the sign up fee stays the same.....because the sign up fee is still gonna be $ 70 no matter how many months you go.
ur answer is : B the number of months and the total cost increase, but the sign up fee stays the same.....because the sign up fee is still gonna be $ 70 no matter how many months you go.