The cost for a online streaming service is modeled by the following function where m represents the number of months the service is subscribed to and C(m) represents the total cost given that amount of time:

C(m) = 15.30m + 20.70

What is the cost for a 3 month subscription?

Answer: The cost for a 3 month subscription is 72.60.

mmmhhh?

C(3) = 15.3(3) + 20.7 = $ 66.60

To find the total cost for a given number of months, you can substitute that value into the equation C(m) = 15.30m + 20.70.

Let's say you want to find the total cost for 6 months.

Substituting m = 6 into the equation:

C(6) = 15.30(6) + 20.70
= 91.80 + 20.70
= 112.50

Therefore, the total cost for 6 months of the online streaming service would be $112.50.

To find the cost of the online streaming service for a given number of months, you can substitute the value of m into the equation C(m) = 15.30m + 20.70.

Let's say you want to find the cost for subscribing to the service for 4 months. In this case, you will substitute m = 4 into the equation:

C(4) = 15.30(4) + 20.70
= 61.20 + 20.70
= 81.90

Therefore, the cost for subscribing to the online streaming service for 4 months would be $81.90.