total monthly cost= monthly service fee + (number of movies rented, m)x(cost of movies rented) + (broadcasts of special events)x(number of broadcasts of special events, s)
with that information, when you plug in the numbers you get:
total monthly cost = (3.99)(m) + (49.95)(s) + 39.95
you can also write it as:
3.99m + 49.95s +39.95 = total monthly cost
